You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm Betty Williams. I am planning to attend music concert at PHX, can you please help me with booking a flight ticket from EWR?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please provide me your travelling dates?

USER: Sure, I would like to take off on 02/19 and return back on 02/21.

ASSISTANT: There is one flight is available for you with single connection. Shall I proceed for booking?

USER: Yes, please proceed with the booking if the price limit does not exceed 500.

ASSISTANT: Ok, Your ticket is booked with flight number 1011 and airline is UA.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight.