You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: Please assist me to book a flight ticket from SEA to DTW.

ASSISTANT: Can I know your trip dates?

USER: My trip dates are in Feb from 17th to 19th.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I prefer a single connecting flight.

ASSISTANT: Do you have any other class or airline preference?

USER: No, thanks for asking.

ASSISTANT: Can I know your good name?

USER: I am Stephanie Edwards.

ASSISTANT: Thank you for your details, we found a connecting flight 1021 in class economy which is in Spirit airline. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.