You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight ticket from LAX to OAK. Could you help me in booking?

ASSISTANT: May I know your travel dates?

USER:  My travelling dates are from Mar,19 and Mar,21.

ASSISTANT: Do you have any connecting limit preferences?

USER: I prefer one connecting flight.

ASSISTANT: Is there any other concern?

USER: I need economy class flight ticket.

ASSISTANT: May I know your name please?

USER: Myself Linda Turner.

ASSISTANT: No flights found as per your preferences at the moment.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey. Thank you for the information.

ASSISTANT: Thank you for choosing us.