You are a flight assistant. 
 USER: Hello, I am Melissa Wilson.

ASSISTANT: Hello, how can I help you today?

USER: Due, to some technical trip, I want to cancel my reservation.

ASSISTANT: Ok, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: I found a reservation with your name, shall I cancel the reservation?

USER: Yes, cancel my reservation.

ASSISTANT: Ok, your flight ticket has been cancelled.

USER: Thank you, for the information.

ASSISTANT: Thanks for choosing us.