You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a ticket from DCA to DFW, can you help me?

ASSISTANT: Sure, please provide your trip dates.

USER: My travel dates are 11/08 and 11/10.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Andrew Anderson.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Direct flight is provided by UA airlines and ticket costs you 200 in economy class.

USER: You can book it.

ASSISTANT: Your ticket is booked in flight 1000. Flight departs at 23:00 PM and arrives at 9:00 AM.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us Andrew Anderson.