You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need you to book a flight ticket from DCA to DFW. Please help me with it.

ASSISTANT: May I know your planned travelling dates please?

USER: March 10 and 12 are planned travelling dates.

ASSISTANT: May I know your connection limit please?

USER: I need a break in my journey.

ASSISTANT: May I know your preferable time for journey?

USER: Nothing much to specify.

ASSISTANT: There is a connecting flight of fare 100 with economy class in Spirit airline, shall I proceed for booking?

USER: Please book the ticket.

ASSISTANT: Your reservation has been confirmed with flight number 1005. May I know your name please?

USER: My name is Cynthia Green.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.