You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Melissa Allen.

ASSISTANT: How may I assist you?

USER: I have a business meeting in Washington, can you help me for booking a flight ticket from SFO to IAD?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are Feb 01 and Feb 03.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 200 and having single connection, shall I proceed with the booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked with the flight-1021.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.