You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from MCO to OAK. Could you book a ticket?

ASSISTANT: May I know your travelling dates?

USER: Departure is Jan, 14 and return date is Jan, 16.

ASSISTANT: May I know your name?

USER: I am Donna Wright.

ASSISTANT: Is there any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to prefer business class.

ASSISTANT: There are no flights found with your required dates to travel.

USER: Thank you.

ASSISTANT: Thank you for choosing us.