You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: May I know your name please?

USER: I am Gregory Rodriguez.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no active reservation found on your given name.

USER: That's ok, thank you.

ASSISTANT: Thanks for contacting us.