You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I lend a hand to?

USER: Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Sure, I am here to help you for this. Let me check your reservation status in our database.

USER: Sure, my name is Charles Carter.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: I found your reservation, but I cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you very much for contacting our agency.