You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Timothy Williams. I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I am here to help you. Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, no problem.

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

USER: Thank you for your time.