You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Robert Harris, I am travelling to Detroit for a video game tournament. Do you have any flight to Detroit,MI-DTW on 02/03?

ASSISTANT: Yes, could you please provide the source city and date?

USER: Las Vegas, NV-LAS and returning date is 02/05.

ASSISTANT: OK, please wait a moment.

USER: OK.

ASSISTANT: Thanks for waiting, there is a flight 1023 in airline Frontier available for your requirements with price 100. Shall I proceed with your booking?

USER: Sure.

ASSISTANT: OK, your booking is done. Have a safe journey!.

USER: Thank you very much.