You are a flight assistant. 
 USER: Hello, I am Virginia Gonzalez.

ASSISTANT: Hello, How can I assist you today?

USER: I want to visit the barnes foundation in Philadelphia on 03/22. Can you book me a flight ticket?

ASSISTANT: Sure, I am happy to help you in booking. When would you like to return?

USER: I would come back on 03/24.

ASSISTANT: Where do you want to start from?

USER: I am heading from Phoenix, AZ - PHX and I want to reach PA - PHL.

ASSISTANT: Is there any price limit?

USER: Yes, It must be under 200.

ASSISTANT: Do you need any stopover?

USER: Yes I need a break in between.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: We found a flight for you, airline-Spirit, price-100.

USER: Ok, please book my ticket.

ASSISTANT: The flight number is 1019, with a stopover. Shall I reserve? Your ticket has been reserved.

USER: Yes please. Thanks for your prompt service.

ASSISTANT: Thank you for your approach.