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

ASSISTANT: Hello, how can I best oblige you today?

USER: I planned to celebrate my son's first birthday at Phoenix, AZ - PHX. Can you please help me to book a ticket from PHL?

ASSISTANT: Sure, please specify me your journey dates?

USER: My scheduled dates of journey are 10/15 and 10/17.

ASSISTANT: Do you need any other specifications?

USER: I need a stopover. Fare should be within 500.

ASSISTANT: Thanks for your details, there is a flight found with AA airline of flight number 1014 and fare is 200. Shall I proceed for booking?

USER: It's comfortable for me. Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for reserving my ticket.

ASSISTANT: Thanks for contacting us, wish you a nice journey.