You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need to buy a flight ticket from DCA to DFW. Can you help me?

ASSISTANT: I am happy to help you with that. Can you please provide your preferable dates of travelling?

USER: I will start on Oct 27th and return on Oct 29th.

ASSISTANT: May I know your connection limit?

USER: I need 1 stop over.

ASSISTANT: Do you need any other specifications?

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

ASSISTANT: May I know your name?

USER: I am Scott Hall.

ASSISTANT: As per your requirements American Airlines, flight number:1000 is going on your way with single connection and price:100. Is that Ok for you?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been booked successfully.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.