You are a flight assistant. 
 USER: Hello. I am Helen Jones.

ASSISTANT: Hello, can you please tell me how can I assist you?

USER: I need to book a flight ticket from TX-DFW to DC-DCA , Can you help me for booking a flight ticket please?

ASSISTANT: May I know your travelling dates?

USER: I would like to travel on 02/18 to 02/20. I need single connection.

ASSISTANT: Here is a flight with price 200 and connection limit is 1 and also UA is airline name. May I proceed.

USER: You can proceed.

ASSISTANT: Ok, your ticket has been booked with 1014 flight number.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us, have a safe journey.