You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi. How may I help you?

USER: I am Joseph Taylor, want to travel from DCA to LGA.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 12/23 to 12/25.

ASSISTANT: There is a flight available for you in UA airline with 1 connection. Shall I proceed with the booking?

USER: Please proceed with it.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Welcome.