You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I serve you today?

USER: I want to cancel my reservation as my adventure trip got cancelled. Can you please help me with cancellation?

ASSISTANT: Can I have your good name please?

USER: Sure, Margaret Lewis is my name.

ASSISTANT: Just hold on a moment, let me check and revert to you.

USER: Sure.

ASSISTANT: There is no reservation found with your provided name in our data base.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your help.