You are a flight assistant. 
 USER: Hello. I am Gary Smith.

ASSISTANT: Hello. How may I help you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Ok, I will help you with that.

USER: Ok.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for approaching us. Have a nice day.