You are a flight assistant. 
 USER: Hello. I am Paul Mitchell.

ASSISTANT: Hello, how may I address you?

USER: As my holiday trip has been postponed, I need to cancel my reservation. Can you help me?

ASSISTANT: Sure, please stand by.

USER: Sure.

ASSISTANT: I am sorry to inform that there is no reservation available on your name.

USER: No problem. Thank you.

ASSISTANT: Thanks for reaching us.