You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Actually, I booked a ticket to PHX to attend a seminar but due to bad weather, I want to postpone my trip.

ASSISTANT: May I know your name?

USER: My name is Dorothy Martinez.

ASSISTANT: There is no reservation found under your name.

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

ASSISTANT: Most welcome.