You are a flight assistant. 
 USER: Hi. I am Rachel Clark.

ASSISTANT: Hello, how may I help you?

USER: I have several meetings around Washington DC - IAD so, I want to book a round trip flight. Can you book a ticket under 1000 price?

ASSISTANT: Sure, can you please provide your travel dates?

USER: Ok, 02/17 and 02/19 are my travel dates.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connection.

ASSISTANT: Please wait for a while, I will check and revert you.

USER: OK.

ASSISTANT: We found a Southwest airline matching your requirements. Flight number 1000 with fare 200 and having a single connection.

USER: Ok, please go ahead with booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your kind help.

ASSISTANT: Thank you for reaching us, have a good day.