You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please check for a connecting flight to Detroit, MI - DTW under 500 fare.

ASSISTANT: Sure, may I know your origin airport code?

USER: Dallas & Fort Worth, TX - DFW is my origin airport code.

ASSISTANT: Can you please share me your travel dates?

USER: My travel dates are 12/20 and 12/22.

ASSISTANT: May I know your good name please?

USER: Raymond Moore is my name.

ASSISTANT: We found a flight on your details with airline Spirit, flight number 1019. Shall I book this ticket?

USER: Yes, please book this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.