You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm John garcia. I want to travel from NV - LAS to PA - PHL. The price limit is 200.

ASSISTANT: Can I know the travel dates please?

USER: The departure is on 02/08 and return is on 02/10.

ASSISTANT: OK, please wait a moment.

USER: OK.

ASSISTANT: I have found a flight for you with single connection and price is 100. Shall I book it?

USER: Sure. Please proceed with the booking.

ASSISTANT: I have booked your ticket with flight number 1021 and airline is Delta.

USER: OK.

ASSISTANT: Thank you for reaching us, have a safe journey.

USER: Thank you for your help.