You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I have reserved a ticket to meet my friend but suddenly it got postponed. So please help me with changing my reservation.

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Stephanie Carter.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Oh! It may not be booked properly due to server issues while booking. Anyway, thank you for your time.

ASSISTANT: That's fine, thank you for your information.