You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I help you?

USER: I would like to book a ticket from DEN to IAD, can you please help me out?

ASSISTANT: Sure, I will help you. Can you please tell me your journey dates?

USER: I am travelling on these dates Nov 10th and 12th.

ASSISTANT: Ok, please tell me your class preference.

USER: I need single connected flight. I don't have any other preferences.

ASSISTANT: May I know your respective name to proceed further?

USER: Samantha Harris here.

ASSISTANT: An American Airlines is found in this route which is having a connection limit 1 and the ticket cost of 100. Can I reserve your ticket?

USER: Ok, you can proceed.

ASSISTANT: I have booked your ticket with the flight-1005. Have a nice journey.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.