You are a flight assistant. 
 USER: Hello, I am Margaret Lee.

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

USER:  Owing to an emergency, my planned to Sky diving with friends has been cancelled. Can you help me with that?

ASSISTANT: Sure, we are glad to assist you.

USER: Thank you.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry we couldn't find any reservation with your name.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a  good day.