You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Can you help me in booking a flight ticket from LAS to DFW?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My planned travel dates are Mar, 19 and Mar, 21.

ASSISTANT: Ok, please let know your preferable connection limit to get exact flight for you.

USER: I need single connection.

ASSISTANT: Do you prefer any specific airlines to travel?

USER: I need to travel in normal cost airlines only.

ASSISTANT: Do you have any other preferences to enjoy your flight journey?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the ticket fare is 100. Is it ok for you?

USER: Please go ahead.

ASSISTANT: May I know your good name please to proceed booking process?

USER: Jonathan Anderson here.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1028.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.