You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how may I assist you?

USER: I need to travel Boston, can you please reserve flight ticket from LAX and BOS?

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are Sept,04 and Sept,06.

ASSISTANT: Do you need any break in your journey?

USER: No.

ASSISTANT: Is there any class preference for you?

USER: No, but I need to return in the afternoon.

ASSISTANT: May I know your good name please?

USER: Myself Nicholas Anderson.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: That's ok, I will choose any other source to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.