You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for today?

USER: I am Brian Phillips. I would like to book a ticket from OAK to MSP, can you please help me out?

ASSISTANT: Sure, I will help you about that Brian Phillips. Can you please provide your planned dates of journey?

USER: I am travelling on these dates OCT 29th and 31st.

ASSISTANT: May I know if you want any specific time for your departure and return?

USER: I need return time in the morning.

ASSISTANT: Do you have any other requirements about your journey?

USER: I prefer economy class. I need a direct flight.

ASSISTANT: Sorry to say this Brian Phillips, there are no flights as per your requirements.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome, thank you for reaching us.