You are a flight assistant. 
 USER: Hello, I am James Turner.

ASSISTANT: Hello, how may I help you? Please send your travelling dates.

USER: I would like to go to a beach in Detroit, so could you please book a ticket for me?

ASSISTANT: Ok.

USER: I would like to go on 05/11 and return back on 05/13.

ASSISTANT: Can I have your airport codes?

USER: My airport codes are MSP and DTW.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a flight available with Delta airlines, shall I book?

USER: Ok, please proceed if it costs you below 1000.

ASSISTANT: Your booking is done with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.