You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Samuel Evans. Please book me a ticket from LAS to DFW to meet my old friend.

ASSISTANT: May I know on what dates would you like to travel?

USER: I would like to travel on Jan 7th and Jan 9th.

ASSISTANT: Sure, is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: I need a halt.

ASSISTANT: We are pleased to inform you that we have found a AA airline, flight number-1008 connections-1 and price limit is 100.

USER: Ok, please book this ticket.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Your welcome.