You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Patrick Moore, can you help me with booking ticket from EWR to SEA?

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

USER: Ok, my preferable dates are from June 08 to 10.

ASSISTANT: Please help me with your preferred travel time.

USER: Yes, I want to departure in the afternoon time.

ASSISTANT: Do you need a break in your journey?

USER: Yes.

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

USER: Ok, I need a flight with normal-cost.

ASSISTANT: May I know with your class preference please?

USER: I don't have any class preferences.

ASSISTANT: Patrick Moore. I am sorry to inform you that there are no active flights that matches your needs.

USER: It's ok, thanks for your information.

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