You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: My name is Matthew Davis. Actually, I booked a ticket to MSP for a music concert but due to bad weather, I want to postpone my trip.

ASSISTANT: Sure, please hold on for a moment while I check for any available flights.

USER: Sure, take your time.

ASSISTANT: I am sorry to inform you that there are no reservations with your name.

USER: That's ok.

ASSISTANT: Thank you.

USER: Thank you.