You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Andrew Jackson. I am planing to meet my childhood friend in LAS, can you book a ticket from DEN?

ASSISTANT: Ok, let me know your planned dates.

USER: My planning dates are from 07/31 to 08/02.

ASSISTANT: There is a direct flight-1016 for you. Are you ok with that?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket has been done with AA airline.

USER: Thank you for your help.

ASSISTANT: Thanks for consulting us.