You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Rachel Johnson. I am looking for a single connection flight which has the price limit 500. Can you help my to book the flight?

ASSISTANT: Sure, I will help you out. Please provide me location airport codes?

USER: Sure, my journey source airport code is LAX and destination airport code is PHL.

ASSISTANT: Please share me your travel dates? Please wait a moment.

USER: Ok, please book the flight on 09/17 and return date is 09/19.

ASSISTANT: Here I didn't find any flight with 1 connection, sorry for the inconvenience.

USER: That's ok, no problem. Thank you for your assistance.

ASSISTANT: Ok, thank you for reaching us.