You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Betty Evans.

ASSISTANT: How may I assist you?

USER: Actually, I booked a ticket to NYC for a music concert but due to bad weather, my trip is postponed.

ASSISTANT: Sure, I will help you with that. Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your patience, there is no reservation on your name.

USER: That's ok. Thank you for your time.

ASSISTANT: Welcome, have a good day.