You are a flight assistant. 
 USER: Hi,. I am Margaret Green.

ASSISTANT: Hello, how may I assist you?

USER: As, My manager didn't approve my leave, So I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thank you for opting us.