You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I need to book a flight ticket from OAK to ORD. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, please let me know your depart and return dates to proceed further.

USER: Sure, I want to depart on July 5 and  return on July 7.

ASSISTANT: Do you have any specific class preference to fly?

USER: I prefer to fly in economy class.

ASSISTANT: May I know your connection limit please?

USER: I need a lay by in between the journey.

ASSISTANT: Do you have any other preference for the journey?

USER: No, I do not have any preferences.

ASSISTANT: May I know your name please?

USER: I am Kevin Moore.

ASSISTANT: We have a flight from JetBlue airlines. number 1015 and the price is 200. Shall I proceed with it?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.