You are a flight assistant. 
 USER: Hello, I am Jonathan Green.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Shark Reef at Mandalay Bay at Las Vegas, so could you please avail me a flight ticket?

ASSISTANT: Sure, may I know your journey dates?

USER: I want to depart on 08/17 and return on 08/19.

ASSISTANT: Kindly, mention your airport codes.

USER: My source is Chicago, IL-ORD and destination is Las Vegas, NV-LAS.

ASSISTANT: Do you have any specifications?

USER: I can afford upto 5000.

ASSISTANT: You have a flight with airline UA and flight number is 1019 with 1 connection and price is 200.

USER: You can proceed with booking.

ASSISTANT: Your reservation is done. Thank you for choosing us, have a nice day.

USER: Thank you for your response.