You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

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

USER: My trip dates are from Sept, 16 to Sept, 18.

ASSISTANT: Please let me know with your name.

USER: Matthew Parker.

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 Southwest Airlines with a fare of 300, shall I book the flight ticket?

USER: Please proceed.

ASSISTANT: I have booked your ticket in flight-1005, it departs at 16:00 hours and arrives at 14:00 hours.

USER: Thank you for booking.

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