You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Rebecca Robinson here. I'm planning to visit Austin, can you please book a ticket from IAD to AUS?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my planned departure and return travel dates are 18th and 20th of March.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I need 1 halt in between my journey.

ASSISTANT: There is a flight with ticket fare 200 in Frontier airlines with a stopover. Is it ok for you?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your booking is confirmed with flight number 1029 in economy class.

USER: Thank you so much for your help.

ASSISTANT: Thank you for contacting us, have a nice day.