You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Benjamin Smith. I would like to book a flight ticket from San Francisco CA-SFO to Dallas & Fort Worth TX-DFW for shopping. Can you please help me in booking?

ASSISTANT: Sure, please share me your planning dates.

USER: My planned dates are 12/03 and 12/05.

ASSISTANT: Benjamin, do you have any other specifications?

USER: I need a halt. I can afford upto 1000.

ASSISTANT: You have a flight with single connection in Southwest airline having price 100. Can I proceed with flight 1004?

USER: You can continue with the booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for selecting us.