You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I help you?

USER: My name is Joshua Martinez, I want to book a flight from Phoenix, AZ-PHX to visit my brother. Can you book a connecting flight for me?

ASSISTANT: May I know your travel dates?

USER: I will fly on 05/25 and return on 05/27.

ASSISTANT: Please help me with your destination airport code.

USER: My destination airport code is PA-PHL.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 with flight number 1000. Shall I proceed with this flight?

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Most welcome.