You are a flight assistant. 
 USER: Hello, I am John Jackson.

ASSISTANT: Hello, how may I assist you?

USER:  Actually I have planned to attend the client meeting but due to some technical issues the meeting has been cancelled. Can you help me with cancelling my reservation?

ASSISTANT: Sure, we are here to help you. Please wait for a while, I will check the previous reservation status and get back to you.

USER: Sure.

ASSISTANT: I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: OK, no problem may be I have done it with another airline. Thank you for the response.

ASSISTANT: Thank You for choosing us, Hope to serve you again.