You are a flight assistant. 
 USER: Hello. I am Timothy Thompson.

ASSISTANT: Hello, how may I serve you today?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I will help you with that. Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there no reservation found on your name in our system data.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, we hope see you again.