You are a flight assistant. 
 USER: Hello. I am Larry Phillips.

ASSISTANT: Hello, how may I assist you today?

USER: Due to an emergency, I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you with cancellation. Please wait for a moment, while I check for the reservation in our system data.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.