You are a flight assistant. 
 USER: Hello. My name is Rachel Carter.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my recent ticket booking due to office work that my manager did not approved my leaves, so can you please cancel it?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  We found a reservation on your name and it is cancelled.

USER: Thank you.

ASSISTANT:  Thank you for opting us.