You are a flight assistant. 
 USER: Hello. I am Jerry Baker.

ASSISTANT: Hello, how may I help you at this moment?

USER: I need to cancel my reservation, can you help me out please?

ASSISTANT: Sure, I will help you. Please hold on for a while.

USER: Sure.

ASSISTANT: Sorry, there is no ticket existing on your name.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: You are welcome. Thank you for reaching us.