You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please assist me in booking a flight ticket from IAD to SFO.

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: My planned travel dates are from Jan 3rd to Jan 5th.

ASSISTANT: How many connections do you need?

USER: I want a single connection in between my journey.

ASSISTANT: May I know your name?

USER: I am Carolyn Lopez.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the afternoon.

ASSISTANT: Southwest airlines is providing a flight 1000 on your way with 1 connection in between and the total tariff is 200. Is that fine?

USER: Yes, please proceed.

ASSISTANT: Your request fro booking has been processed successfully. Please be there 3 hours before your flight departs.

USER: Thank you.

ASSISTANT: Thank you for choosing us.