You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

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 will help you with that. Can I know your name to check your previous reservation?

USER: My name is Cynthia Hernandez.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

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

ASSISTANT: Thank you for reaching us, hope you have a great day.