You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I have a plan to attend an event in SFO. Can you please help me in booking flight ticket from DFW?

ASSISTANT: Sure, please share your planned travel dates.

USER: My trip dates are Aug 18 to Aug 20.

ASSISTANT: Ok, do you prefer either economy or business class?

USER: I am ok with any class.

ASSISTANT: Ok, do you have any particular depart and arrival times in mind?

USER: I don't have any particular timings.

ASSISTANT: May I know your connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Sure, may I know your name to proceed further with the booking?

USER: Myself Frank Hall.

ASSISTANT: We have a flight from Southwest airlines, number 1000 and the price for this flight is 100. Shall I proceed with the booking?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed in economy class with a connecting flight.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.