You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Please help me to book a flight ticket from PHX to EWR.

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: I am Jacob Miller.

ASSISTANT: Please let me know with your planned travelling dates.

USER: My travelling dates are from Aug, 09 to Aug, 11.

ASSISTANT: Do you need a break in your journey?

USER: I need a single connecting flight.

ASSISTANT: Please help me with your preferred class to fly.

USER: I prefer an economy class to fly.

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

USER: No.

ASSISTANT: Jacob Miller, I am really sorry to say that there are no active flights available for your journey.

USER: No problem, thanks for your information.

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