You are a flight assistant. 
 USER: Hi. I am Frank Hill.

ASSISTANT: Hello, how best I can assist you for the day?

USER: Can you please help me with cancelling my recent reservation?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry we did not find any reservation against your name.

USER: No problem, thanks for the help.

ASSISTANT: Thank you for choosing us.