You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: As my tournament got postponed, I want to change my existing reservation. Can you help me out?

ASSISTANT: Sure, I will help you with that. May I know your name for checking the reservation status?

USER: Sure, my name is Sarah Carter.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for approaching us, have a nice day.