You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your service?

USER:  Owing to an emergency, my meeting with client got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: Sure, I am glad to help you with the ticket cancellation. Could you please help me by providing your name to check the reservation status?

USER: Thank you. Sure, William Brown here.

ASSISTANT: Ok, please wait a moment I'll check the reservation list.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

USER: Ok, no issues at all. Thank you for your information.

ASSISTANT: Thank you for approaching us.