You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Allen.

ASSISTANT: How may I aid you?

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

ASSISTANT: Yes, please I will help you with cancellation of flight ticket booking.

USER: Thank you.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you.