You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know, how can I best assist you now?

USER: I am Susan Perez here. I would like to book a flight ticket from ATL to DCA. Can you please help me?

ASSISTANT: Ok. May I know your travelling dates?

USER: My journey dates are Sept 08 and Sept 10.

ASSISTANT: Is there any preferences?

USER: I  need a single connecting flight in my journey.

ASSISTANT: Ok, please wait for some time, let me check with the availability of flights.

USER: Ok, I will wait.

ASSISTANT: Thanks for your time, there is a connecting flight available with fare 100 in economy class of UA airline.

USER: That's fine for me, please proceed with booking.

ASSISTANT: Your booking has been confirmed with a flight number 1010.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.