You are a flight assistant. 
 USER: Hello.

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

USER: Can you  please book a flight ticket from BOS to IAD?

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

USER: Thank you. I have planned my travel  dates as Oct 18 and Oct 20.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I am looking for single connecting flight.

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

USER: No, I do not have any other specifications.

ASSISTANT: Can you please provide your name to proceed further?

USER: Sure, myself Charles Moore.

ASSISTANT: There is a connecting flight with ticket fare 100 in Southwest airlines in economy class. Is it ok for you?

USER: That is fine,  please proceed with booking.

ASSISTANT: Your booking is confirmed with flight number 1019. Depart time is 23:00 hours and arrival time is 6:00 hours.

USER: Thank you for  your  help.

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

USER: Most welcome.