You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

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

ASSISTANT: Sure, can you please share your name for further process?

USER: Sure, my name is Patrick Hall.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thank you, no reservation found with your name.

USER: That's ok, thanks for the information.

ASSISTANT: Thank your for contacting us, have a nice day.