You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I just want to cancel my reservation, As I have to visit another meeting with my clients on same day. Can you help me with that?

ASSISTANT: Sure, we are here to help you. May I know your name?

USER: Thank you. Sure, Donald Taylor is my name.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok, thanks for your effort.

ASSISTANT: Thanks for approaching us.