You are a flight assistant. 
 USER: Hello, I am Paul Green.

ASSISTANT: Hello, how may I be of your service?

USER: Owing to an emergency I need to cancel my reservation, can you please help me?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for connecting with us.