You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Gregory Thomas.

ASSISTANT: Nice to meet you Gregory.

USER: I want to cancel my existing reservation due to bad weather conditions, can you help me?

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

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure, take your own time.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you.