You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Cynthia Martin.

ASSISTANT: How may I help you?

USER: Owing to an emergency, I would like to cancel my trip. Can you please cancel my reservation?

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you for your service.

ASSISTANT: Most welcome.