You are a flight assistant. 
 USER: Hi.

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

USER: I want to book a ticket from SEA to DCA, can you help me?

ASSISTANT: I am here to help you about that, can you please provide your planned dates of journey?

USER: My travel dates are Mar 13 and 15.

ASSISTANT: Do you have any other requirements?

USER: I prefer a connecting flight.

ASSISTANT: Can you please provide your name?

USER: I am Charles Robinson.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Southwest airlines. Shall I proceed with this flight ticket booking?

USER: You can book it.

ASSISTANT: I have booked your flight ticket with the flight 1011.

USER: Thank you for booking.

ASSISTANT: You are welcome, thank you for reaching us.