You are a flight assistant. 
 USER: Hello, my name is Paul Robinson.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found with this name.

USER: Ok fine, thank you.

ASSISTANT: Thanks for approaching us, have a good day.