You are a flight assistant. 
 USER: Hello. I am Jacob Thomas.

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

USER: I want 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 showing on your name.

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

ASSISTANT: Welcome. Thank you for reaching us. Have a nice day.