You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christopher Thomas.

ASSISTANT: How can I help you?

USER: Can you help me in booking from SEA to DFW?

ASSISTANT: Your travelling dates please?

USER: My travelling dates are from Nov 19 to Nov 21.

ASSISTANT: Do you have any specifications?

USER: I want to return in the morning time.

ASSISTANT: Do you need connection flight.

USER: Yes, I need a single connecting flight.

ASSISTANT: Here is a connecting flight with flight number 1015 and fare is 100, providing ticket in economy class. Shall I proceed with booking?

USER: Ok, you can proceed.

ASSISTANT: Your booking is done in Southwest airlines.

USER: Thank you.

ASSISTANT: Thank you for choosing us.