You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket to Dallas & Forth Worth with price under 1000, can you please help me with it?

ASSISTANT: Sure, can you please provide your scheduled dates?

USER: Travel dates are 12/11 and 12/13.

ASSISTANT: Kindly mention your origin and destination points?

USER: Airport codes are DEN-DFW.

ASSISTANT: Do you need any halt in between journey?

USER: I need a single connection.

ASSISTANT: Ok, please wait a  moment.

USER: OK.

ASSISTANT: Thanks for your time, we have found a Frontier airline, flight number-1009 connections-1 and ticket fare is 100.

USER: You can proceed with booking.

ASSISTANT: Sure, your reservation has been done.

USER: Thanks for the help.

ASSISTANT: Thank you for picking us.