You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Virginia Smith.

ASSISTANT: How can I render you today?

USER: I need to cancel my recent reservation due to postpone of my exam. Could you please help me in doing that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: We found a reservation on your name, Shall I proceed for cancellation?

USER: You can proceed with cancelling my reservation.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for choosing us.