You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Scott Campbell. I would like to change my reservation as I am leaving for business meet, can you please help me out?

ASSISTANT: Sure, please wait for a minute.

USER: Thank you. Sure.

ASSISTANT: Sorry, I could not find any reservation with your name in our database.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thanks for choosing us.