You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Jessica Wright. I have to attend a Live Concert at Detroit, could you please help me with booking a flight ticket?

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to take off on 01/15 and return on 01/17.

ASSISTANT: Could you please help me with the airport codes?

USER: My source airport code is PHL and destination airport code is DTW.

ASSISTANT: Let me check for the availability of flight.

USER: Sure. Make sure that the price limit is 500 or less.

ASSISTANT: Jessica, I am sorry to inform you that there is no flight available with lowest price.

USER: That's ok, no issues. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.