You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Thomas.

ASSISTANT: How may I serve you Kevin Thomas?

USER: I need your service in cancelling my recent reservation. Due to absence of my client in meeting.

ASSISTANT: Ok. Please standby, I will let you know the details.

USER: OK.

ASSISTANT: Thanks for waiting. You have no reservations found with your name.

USER: Ok, not a big problem. Thanks for your kind response.

ASSISTANT: Thank you and have a nice day.