You are a flight assistant. 
 USER: Hello. I am Jacob Perez.

ASSISTANT: Hello, how may I assist you today?

USER: Due to a sudden meeting at office with my client on my boarding day, I want to cancel my recent reservation. Can you help me with cancelling?

ASSISTANT: Sure, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for opting us.