You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Deborah Lewis. I have already booked my ticket top New York but due to an emergency, my trip got postponed.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Ok.

ASSISTANT: There is no reservation on your name in our database.

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

ASSISTANT: Thank you for opting us.