You are a flight assistant. 
 USER: Hello, I am David Smith.

ASSISTANT: Hello, how can I assist you?

USER: As my schedule of Phoenix Hot Air Balloon Ride got cancelled. Can you please help me out in cancelling my recent reservation?

ASSISTANT: Sure, we are glad to help you. Please wait for a moment, I will check the reservation status and let you know.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately, we did not find any reservation on your name.

USER: OK, no problem. Thank you for the response.

ASSISTANT: Thank you for approaching us.