You are a flight assistant. 
 USER: Hello. I am Anthony Garcia.

ASSISTANT: Hello, how can I guide you today?

USER: Could you please help me with booking a flight on 08/06 to exhibit my designer dresses collection.

ASSISTANT: Sure, may I know your source and destination?

USER: Sure, CO-DEN and PA-PHL are my airport codes.

ASSISTANT: Please provide me your return date.

USER: I intend to return on 08/08.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Ok.

ASSISTANT: We are glad to say that, we found an airline: UA, flight number: 1015 and price is 200.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.