You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Nancy Scott. I want to book a ticket to Philadelphia, PA - PHL. Can you please help me?

ASSISTANT: When are you planning to travel?

USER: I planned to travel on 11/23 and return on 11/25.

ASSISTANT: Please provide your origin airport code.

USER: My origin is New York, NY - JFK.

ASSISTANT: Do you have any specifications?

USER: I need a stopover in my journey.

ASSISTANT: Delta airlines with single connection and price is 100 of 1022 flight.

USER: Price of ticket should be under 200.

ASSISTANT: Shall I proceed for booking?

USER: It's perfect. Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.