You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: We friends were planning to cancel the tour which is scheduled on 03/15, will you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thanks.

ASSISTANT: Could you please provide your name?

USER: My name is Karen Evans.

ASSISTANT: Sorry Karen Evans, no reservation found on your name in our records.

USER: Ok, not a problem.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you.