You are a flight assistant. 
 USER: Hello, I am Emma Mitchell.

ASSISTANT: Hello, how can I amend you?

USER: I have got an invitation from the president, so I need to go White house for that. Please help me with booking a flight ticket to Washington, DC - IAD.

ASSISTANT: Sure, let me know your journey dates.

USER: My travelling dates are from 03/17 to 03/19.

ASSISTANT: Ok, May I know your source point?

USER: My source code is LAS.

ASSISTANT: Ok, do you need any stopover?

USER: I need a stopover in between my journey.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for your time, we found a connecting flight in 1001 Southwest plane with price 100. Shall I proceed for booking?

USER: Please go with booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for the reservation.

ASSISTANT: Thank you for reaching us.