You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you aid me to book a ticket from OAK to LAX?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are Jun 4 and Jun 6 respectively.

ASSISTANT: Do you need direct flight or connecting flight?

USER: Make sure that I need a connecting flight.

ASSISTANT: May I know your class preferences?

USER: No class preferences for me.

ASSISTANT: Is there any time concern for you?

USER: No.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Carolyn Rodriguez here.

ASSISTANT: We found a UA airline and 1020 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.