You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to fly from SEA to DCA. Can you check the flight availability on that route?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my planned travel dates are 03/13 and 03/15.

ASSISTANT: Do you have any other specifications?

USER: I want a flight with single connection.

ASSISTANT: Please help me with your name for booking.

USER: Sure,Barbara Lopez here.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1027. Shall I proceed with this flight?

USER: Make sure that, my return time should be in the morning.

ASSISTANT: Your booking is done.

USER: Thank you for the booking .

ASSISTANT: Thank you for reaching us.