You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Richard Allen.

ASSISTANT: How may I serve you today?

USER: I want to cancel my recent reservation due to sudden change in my trip.

ASSISTANT: Sure, please wait a moment I will check the reservation status.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation on this name. Shall I cancel the ticket?

USER: Ok, you can proceed it for cancellation.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thanks for consulting us.