You are a flight assistant. 
 USER: Hello. i am Catherine Jones.

ASSISTANT: Hello, how can I support you?

USER: I need to cancel my recent reservation, as my exam got cancelled. Please help me in cancelling?

ASSISTANT: Sure, we are here to help you. Please give me a minute, I will check the reservation on your name and revert to you.

USER: Ok.

ASSISTANT: Thank you for your time. We are sorry to inform you that we did not find any reservation on your name.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for availing us.