You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Andrew Baker here. I would like to book a ticket from DCA to SEA.

ASSISTANT: Sure, help me with your travelling dates?

USER: My itinerary dates are as follows June 17 and June 19.

ASSISTANT: Do you need any class preference?

USER: No. thank you for asking.

ASSISTANT: Is there any airline preference?

USER: No, but I would like to board a single connection flight with return time in the afternoon.

ASSISTANT: According to your information, we found a flight with an airline JetBlue of flight 1011 in an economy class with return time 18:00 PM. Can I proceed with the booking?

USER: Please proceed for booking.

ASSISTANT: Your seat has been confirmed.

USER: Thank you very much.

ASSISTANT: Thank you for choosing us.