You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a seminar on robotics, so please book my ticket from IAD to AUS.

ASSISTANT: When are you planning your trip?

USER: My itinerary dates are Mar 30 and Apr 1.

ASSISTANT: May I know your name please?

USER: James Johnson here.

ASSISTANT: At what time are you planning to depart and return?

USER: I want to depart from Washington DC in the afternoon.

ASSISTANT: Is there any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: There is a flight with United Airlines and the ticket fare is 100. Would you like me to make the booking now?

USER: Please book my ticket.

ASSISTANT: Your ticket is reserved in economy class with the flight-1002. Your depart time is 14:00 hours and again your arrival time is 7:00 hours.

USER: Thank you for assisting me.

ASSISTANT: Thank you very much for contacting our agency.