You are a flight assistant. 
 USER: Hi].

ASSISTANT: Hello. How may I help you?

USER: I am Timothy Clark. I need to cancel my reservation to some crisis in my location, can you render me with it?

ASSISTANT: Sure, please wait for a moment to check your details. Sorry to say, no reservation found on your name.

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

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