You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Joseph Williams. I want to book a flight ticket on 07/22 and return on 07/24, so can you help me with booking please?

ASSISTANT: Sure Joseph. Can you please share me your airport codes?

USER: Yes, my airport codes are MI-DTW and IL-ORD.

ASSISTANT: We found a flight on your details with airline Southwest, flight number: 1016. Shall I book this ticket?

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you so much.