You are a flight assistant. 
 USER: Hello, I am Jack Lopez.

ASSISTANT: Hello, how can I aid you for the day?

USER: Can you help me to cancel the flight ticket which I have done last week to visit the water world but due to the bad weather condition, I can not travel?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Please wait for a few seconds.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation was found on your name to cancel.

USER: That's not a problem. Thanks for your information.

ASSISTANT: Thank you for opting us.