You are a flight assistant. 
 USER: Hello, I am Larry Collins.

ASSISTANT: Hello, how can I assist you?

USER: I would like to fly from DFW to DTW to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: My journey dates are 05/21 to 05/23.

ASSISTANT: Please provide your specifications?

USER: I need a halt. I can spend upto 200.

ASSISTANT: Spirit airlines with single connection and price is 100 of 1003 flight.

USER: Ok, book the ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.