You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Timothy Mitchell. I would like book a ticket from SEA to DCA.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My itinerary travel dated are June 28 and June 30.

ASSISTANT: Do you have any specifications?

USER: I would like to travel by single connection with return time in the evening.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed in booking with this flight?

USER: Please proceed with booking.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1011 in Southwest airlines.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.