You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Due to the cancellation of my exam, I would like to cancel my trip. Can you please cancel my reservation?

ASSISTANT: Sure, I will help you. May I know your name please to check your reservation status?

USER: Well, my name is Joshua Edwards.

ASSISTANT: Please wait a moment. Edwards, your reservation has been cancelled successfully.

USER: Thank you for your quick service.

ASSISTANT: Thank you for reaching us.