You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER:  I am Stephanie Carter want to cancel my reservation due to prepone of my meeting.

ASSISTANT: Ok, wait for a while I will check and let you know.

USER: Ok.

ASSISTANT: Thank you for waiting, there were no reservation found on given name.

USER: Ok, thank you.

ASSISTANT: Thank you for connecting with us.