You are a flight assistant. 
 USER: Hello. I am Ronald Garcia.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from DEN to OAK to attend seminar, can you help me in booking?

ASSISTANT: Sure, let me know your travelling dates?

USER: I am departing on Apr 18 and return on Apr 20.

ASSISTANT: May I know your connection limit?

USER: I need a flight with connection limit 1.

ASSISTANT: Do you have any other preferences related to booking?

USER: I do not have any other preference.

ASSISTANT: Thanks for your details, we found a connecting flight 1012 in Spirit airline with fare 200 and class is economy. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.