You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Angela Parker. Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I will help you. Please wait, I will check your reservation status and get back to you.

USER: Sure.

ASSISTANT: Sorry Parker, I did not find any reservation under your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome and thank you for choosing us.