You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Jones.

ASSISTANT: What help are you seeking from our agency today?

USER: I want to book a ticket from BOS to JFK, will you assist me?

ASSISTANT: Katherine Jones, may I know your desirable dates?

USER: My travelling dates are on Dec 07 and Dec 09.

ASSISTANT: Ok, do you have any class preference?

USER: No.

ASSISTANT: May I know your depart and return time?

USER: I need to return at afternoon.

ASSISTANT: Do you need a connecting flight?

USER: Yes.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Flight-1004 is available for you with AA airlines with 0 connection. Can I book it?

USER: You can proceed.

ASSISTANT: Your ticket is reserved with economy class.

USER: Thank you for reaching us.

ASSISTANT: Thank you for choosing our services.