You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you please reserve me a flight ticket from LAS to DCA?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My trip dates are 04/28 - 04/30.

ASSISTANT: Do you need break in between your journey?

USER: I need a single connection.

ASSISTANT: Please let me know if you have any other specifications.

USER: I do not have any other specifications.

ASSISTANT: May I know your good name please?

USER: Sandra Lopez here.

ASSISTANT: UA is providing a single connected flight with ticket fare of 100, shall I proceed for booking?

USER: Please reserve.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1029, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.