You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Due to a sudden meeting at office with my client, on my boarding day, I want to cancel my recent reservation.

ASSISTANT: Sure, we are here to help you.

USER: Can you please help me with this?

ASSISTANT: Can I have your name to proceed?

USER: Sure, you can check the reservation on the name of Anna Robinson.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no reservation found with provided name.

USER: Ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.