You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to some personal problem I am not able to travel, can you help me to cancel that reservation?

ASSISTANT: Ok, get me by giving your name so that I can help you easily.

USER: Paul Perez here.

ASSISTANT: Please wait a moment, let me check the status of reservation.

USER: Sure.

ASSISTANT: There is no reservation found on your name.

USER: It's not a  problem, thanks for your checking.

ASSISTANT: Welcome, have a nice day.