You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Mary Martin.

ASSISTANT: How may I aid you today?

USER: I want to cancel my recent reservation as my tour got cancelled.

ASSISTANT: Ok.

USER: Please help me out.

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Please hold on, I will check the reservation list and get back to you.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, no existing reservation found on your name in the database.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for choosing us.