You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am John Thompson. As I have fallen sick, due to bad weather I would like to cancel my recent reservation. Can you help me?

ASSISTANT: Sure. Give me a minute.

USER: Ok.

ASSISTANT: Thanks for your time. We found a reservation by this name. Can I proceed it for cancellation?

USER: Yes, please cancel it.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thanks for your prompt service.

ASSISTANT: Thank you for contacting us.