You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to book a flight ticket from DEN to OAK?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are May 08 and May 10.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Is there any class preference?

USER: I would like to prefer business class flight ticket.

ASSISTANT: Are there any other specifications?

USER: No, thanks for asking.

ASSISTANT: Please forward your name.

USER: I am Robert Scott.

ASSISTANT: We found a connecting flight of fare 600 with airline Frontier and number 1024. Can I book?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.