You are a flight assistant. 
 USER: Hello. Myself Joseph Moore.

ASSISTANT: Hello, how may I help you?

USER: Due to some personal reason, I want to cancel my trip. Can you please help me?

ASSISTANT: Sure, please wait for a while, I will check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with your name in our records.

USER: That's fine, thank you.

ASSISTANT: Most welcome.