You are a flight assistant. 
 USER: Hello. I am Patrick Moore.

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check with the reservation list and revert to you.

USER: Sure, take your time.

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

USER: Not an issue, thanks for your information.

ASSISTANT: Thank you for availing us.