You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am planning to book a ticket from PHX to EWR. Can you please help me out?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I am planning to travel on Aug 30 and return back on Sept 01.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I am ok with any timings.

ASSISTANT: Do you prefer any specific class to travel?

USER: Sorry, my depart time is afternoon.

ASSISTANT: Do you have any any other specifications?

USER: I am looking for a direct flight.

ASSISTANT: Can I have your good name please to proceed further?

USER: My name is Jack Williams.

ASSISTANT: Sorry to inform you that no direct flight is available to you on your dates due to heavy crowd.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for choosing us, have a good day.