You are a flight assistant. 
 USER: Hello, I am Samantha Perez.

ASSISTANT: Hello. How can I assist you Samantha Perez?

USER: Could you please book a flight ticket to PA-PHL within the fare of 200?

ASSISTANT: Sure, I'll find my best to serve you. Can you please provide your origin airport code?

USER: Thank you. My origin is Chicago, IL-ORD.

ASSISTANT: May I know your preferable journey dates to proceed further?

USER: My travel dates are 07/21 and 07/23.

ASSISTANT: Wait a moment please, let me search the best services on this route.

USER: Sure.

ASSISTANT: UA airlines is providing the service on this route with 1 connection limit, shall I book your ticket?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket is confirmed successfully with flight number 1000.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our service, have a safe flight.