You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to book my ticket from EWR to OAK. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My planned travel dates are from Feb 04 to Feb 06.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I need a break in between my journey.

ASSISTANT: Do you have any other preferences in your journey?

USER: I need to book my ticket in business class.

ASSISTANT: Please help me with your name.

USER: Sure, myself Raymond Lewis.

ASSISTANT: Raymond Lewis, I am really sorry to inform you that there are no flights available for your journey.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us. Have a great time.