You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I'm Jerry Phillips here. My business trip has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, I will help you to cancel that reservation. Please wait for a moment, I will check in our database.

USER: Sure, take your time.

ASSISTANT: Actually, I cannot find any reservation with your name in our database.

USER: Ok, no problem.

ASSISTANT: Thanks for contacting us, have a great day.

USER: Thank you for your information.