You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. By what way may I amend you now?

USER: Christopher White here, due to bad weather suddenly I am fallen sick, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, we are gleeful to help you. Give a minute, I will check the status with your name and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. We found a reservation with your name. Can I cancel your reservation?

USER: Yes, you can proceed.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for opting us.