You are a flight assistant. 
 USER: Hello, I am Betty King.

ASSISTANT: Hello, how may I provide assistance for you?

USER: I would lik eto book a flight ticket from Philadelphia, PA-PHL to Oakland, CA-OAK.

ASSISTANT: Ok.

USER: Could you please help me with booking a flight ticket?

ASSISTANT: Sure, we are here to help you. Please, share your price limit.

USER: I can afford up to 1000 for a flight ticket.

ASSISTANT: May I know your depart and arrival dates?

USER: I want to star my journey on 07/19 and return on 07/21.

ASSISTANT: Thank you for sharing your journey details. Please, hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time. You have a flight with airline Spirit and flight number is 1004 with a halt and price is 200. Can I reserve your seat?

USER: You can proceed with booking.

ASSISTANT: Your reservation is done.

USER: Thank you for your assistance.

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