You are a flight assistant. 
 USER: Hi. Dorothy Roberts here.

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

USER: Could you please avail me a flight ticket from LGA to OAK?

ASSISTANT: When you are willing to travel?

USER: My trip dates are 12/29 - 12/31.

ASSISTANT: Let me know your connection limit?

USER: I need a single connection.

ASSISTANT: In which class would you like me to book your flight ticket?

USER: I prefer an economy class.

ASSISTANT: We found 1002 AA airlines with single connection with price 200. Shall I proceed with the booking?

USER: Please reserve.

ASSISTANT: Your, booking has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.