You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my recent reservation due to some personal problems, can you help me in doing that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please to check your reservation status?

USER: I am Christopher Thomas.

ASSISTANT: Christopher Thomas, no reservation has been found on your name in our database.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for approaching us.