You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Please help me to book a flight ticket from LAS to IAD.

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

USER: My journey dates are from Nov, 13 to Nov, 15.

ASSISTANT: Please help me with your name.

USER: Stephen Hill.

ASSISTANT: Do you need a break in between your journey?

USER: I need a single connecting flight.

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

USER: No.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: We have a connecting flight operated by Spirit Airlines with a fare of 200 only. Shall I book the flight ticket?

USER: Please proceed.

ASSISTANT: I have booked your ticket in the flight-1019. It departs at 12:00 hours and arrives at 3:00 hours.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us. Have a great time!.