You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I have to cancel my flight ticket booking that I am unable to travel the trip which I have planned due to some important meeting , can you help me in cancelling my flight ticket?

ASSISTANT: Ok, may I know your good name?

USER: My good name is Christine Hall.

ASSISTANT:  Please wait I will check and revert you in a while.

USER: Sure.

ASSISTANT: Sorry, no reservation was found on your travel dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.