You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to spend this weekend with my family in SFO. Can you please help me to book a flight from HOU?

ASSISTANT: Sure, let me know your travel dates please?

USER: Sure, I want to travel on Sept 15 and need to return on Sept 17.

ASSISTANT: Do you have any airline preference?

USER: No, I am comfortable with any airline.

ASSISTANT: May I know your connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Do you need any other specifications?

USER: Yes, my depart time must be in the afternoon.

ASSISTANT: Ok, can I know your name please to proceed further?

USER: Samuel Young here.

ASSISTANT: Spirit airlines is providing direct flight with the ticket fare of 100 and depart time is 13:00 PM, arrival time is 20:00 PM. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1014 and an economy class.

USER: Thank you.

ASSISTANT: Thanks for choosing us.