You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in booking the flight ticket from SFO to DFW?

ASSISTANT: May I know your travelling dates?

USER: My travel dates are Mar 21 and Mar 23.

ASSISTANT: Can I know your connection limit?

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

ASSISTANT: Tell me your name please?

USER: Mark Hernandez.

ASSISTANT: Here is a connecting flight with fare 100 and 1025 as flight number in Southwest Airline. Shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed in economy class and your return flight is at evening time.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.