You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I will help you. May I know your name please to check your reservation status?

USER: Thank you. My name is Scott Hall.

ASSISTANT: Scott Hall, no reservation has been found on your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.