• Download the Rules module
• Enable Rules and Rules UI

Add a new rule

• React on event: After Saving New Content (it's listed under NODE)
• Restrict by type: select your content type (ex: Article)

Under Action

• Add Action of Create New Entity >> ENTITY TYPE: USER >> For your EMAIL field, Ex: If you called your field "Email" then it's node:field-email. For user name, I guess you will also need to create a field in the node for that too. Then do same steps as e-mail

Note: You can always click on "DATA SELECTORS" to see all the tokens you can use.

• Add Action of Set data value >> select your entity ref field (Ex: If you called your field "Test" then it's node:field-test) >> for Value use entity-created:uid
• Add action of Send Account Email (listed under USER) >> Account: entity-created

You can modify the e-mail templates here /admin/config/people/accounts use tokens for your needs.

Let me know how this goes, no time to test this Rule.

• Download the Rules module
• Enable Rules and Rules UI

Add a new rule

• React on event: After Saving New Content (it's listed under NODE)
• Restrict by type: Hotel

Under Action

• Add Action of Create New Entity >> ENTITY TYPE: USER >> For your EMAIL field, Ex: If you called your field "Email" then it's node:field-email. For user name, I guess you will also need to create a field in the node for that too. Then do same steps as e-mail

Note: You can always click on "DATA SELECTORS" to see all the tokens you can use.

• Add Action of Set data value >> select your entity ref field (Ex: If you called your field "Test" then it's node:field-test) >> for Value use entity-created:uid
• Add action of Send Account Email (listed under USER) >> Account: entity-created

You can modify the e-mail templates here /admin/config/people/accounts use tokens for your needs.

Let me know how this goes, no time to test this Rule.

• Download the Rules module
• Enable Rules and Rules UI

Add a new rule

• React on event: After Saving New Content (it's listed under NODE)
• Restrict by type: select your content type (ex: Article)

Under Action

• Add Action of Create New Entity >> ENTITY TYPE: USER >> For your EMAIL field, Ex: If you called your field "Email" then it's node:field-test. For user name, I guess you will also need to create a field in the node for that too. Then do same steps as e-mail

Note: You can always click on "DATA SELECTORS" to see all the tokens you can use.

• Add Action of Set data value >> select your entity ref field (Ex: If you called your field "Test" then it's node:field-test) >> for Value use entity-created:uid
• Add action of Send Account E-mail (listed under USER) >> Account: entity-created

You can modify the e-mail templates here admin/config/people/accounts use tokens for your needs.

Let me know how this goes, I did not test this.

• Download the Rules module
• Enable Rules and Rules UI

Add a new rule

• React on event: After Saving New Content (it's listed under NODE)
• Restrict by type: select your content type (ex: Article)

Under Action

• Add Action of Create New Entity >> ENTITY TYPE: USER >> For your EMAIL field, Ex: If you called your field "Email" then it's node:field-email. For user name, I guess you will also need to create a field in the node for that too. Then do same steps as e-mail

Note: You can always click on "DATA SELECTORS" to see all the tokens you can use.

• Add Action of Set data value >> select your entity ref field (Ex: If you called your field "Test" then it's node:field-test) >> for Value use entity-created:uid
• Add action of Send Account Email (listed under USER) >> Account: entity-created

You can modify the e-mail templates here /admin/config/people/accounts use tokens for your needs.

Let me know how this goes, no time to test this Rule.