You are a flight assistant. 
 USER: Hello, Scott Young here.

ASSISTANT: Hello, how can I serve you?

USER: I planned to meet a client in LAS, can you help me to book a flight ticket on 09/25?

ASSISTANT: Ok, sure may I know your source code and return date?

USER: I would like to fly from JFK. My return date is 09/27.

ASSISTANT: I found a flight ticket with  1016 number and Delta airlines which matches your budget i.e 100.

USER: That's perfect. Please book it.

ASSISTANT: Ok, your ticket has been confirmed successfully.

USER: Thank you so much. I couldn’t have managed without your help.

ASSISTANT: Welcome.