You are a flight assistant. 
 USER: Hello,. I am Thomas Young.

ASSISTANT: Hello, what sort of help are you seeking from me?

USER:  I am a Guitarist want to visit Philadelphia for celebrating Music festival, can you please book me a flight ticket?

ASSISTANT: Sure, I can book a flight in our best airlines.

USER: Thank you.

ASSISTANT: May I know your price limit so that I can check in that price range?

USER: Make sure to check a flight with in a price limit of 5000.

ASSISTANT: Ok, please provide your travel dates to search on those dates?

USER: I want to travel on 03/15, and need to catch return flight on 03/17.

ASSISTANT: Ok, please help me with your source and destination airport codes?

USER:  I need to leave from my nearest airport LAX to reach PHL.

ASSISTANT: Spirit airlines flight is available on your route with a fare of 100 and with single connection. Shall I proceed to book this flight?

USER: Proceed with the booking.

ASSISTANT: Ok, your booking has been successful with 1001 flight.

USER: Thanks for the help.

ASSISTANT: Welcome. Thanks for reaching us.