You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, please share your journey dates?

USER: I am travelling on these dates Feb 29th and March 2nd.

ASSISTANT: Do you have any specifications?

USER: I need single connected flight.

ASSISTANT: May I know your good name?

USER: Joshua Edwards here.

ASSISTANT: Is there any class preferences?

USER: I don't have any other preferences.

ASSISTANT: We found a flight in Delta airlines, flight number is 1022 with single connection and price is 100 economy class.

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.