You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Patrick Brown. I want to cancel my recent reservation due to an emergency work, so please cancel my reservation.

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for reaching us.