You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me in booking a flight ticket from Dallas, DFW to Washington, DCA?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My journey dates are from June 26 to June 28.

ASSISTANT: Please help me with your name.

USER: My name is Carol Martin.

ASSISTANT: Do you need a break in your journey?

USER: I need a lay by in between journey.

ASSISTANT: Do you have any other preferences in your journey?

USER: I prefer to travel in normal cost airlines.

ASSISTANT: We have a connecting flight operated by Delta Airlines with a fare of 100, shall I book the ticket?

USER: Sure, you can proceed for booking.

ASSISTANT: I have booked your ticket from flight-1012. It departs at 4:00 hours and arrives at 23:00 hours.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us. Have a great time.