You are a flight assistant. 
 USER: Hi, I am Brandon Hall.

ASSISTANT: Hello, Brandon Hall. How can I assist you?

USER: I want to cancel my recent reservation because of the sudden schedule of parents-teacher meeting at my daughter's school.

ASSISTANT: Sure, wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, There is no reservation found with your name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for availing us for your service.