You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am George Martin want to visit Seattle to spent my vacation with my friends, can you book a ticket with price under 500?

ASSISTANT: Sure, I will help you out. Please provide me your location codes?

USER: Sure, I want to fly from PHL to SEA.

ASSISTANT: Can I know your travel dates?

USER: Yes, my travelling dates will be 09/30 and 10/02.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Here is flight with 1 connection and price is 100. Can I proceed with it?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket has been booked with 1004 flight in UA airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.