You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Jonathan Thompson, I booked a ticket for vacation to Washington DC but my health is not good and I can not travel. Can you cancel my reservation?

ASSISTANT: Sure, I can cancel your reservation right now. Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry there is no active reservation found on your name.

USER: Ok, thank you for the details.

ASSISTANT: Thanks for opting us. Have a great day.