You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to fly from PHX to PHL. Can you book a ticket from that root?

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

USER: Sure, Frank Perez here.

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

USER: My planned travel dates are 08/10 and 08/12.

ASSISTANT: Do you need a break in your journey?

USER: Yes, I need 1 halt in between my journey with the business class.

ASSISTANT: Please help me with your preferred class to fly. I am sorry. Do you have any other preferences in your journey?

USER: Make sure that, my depart time should be in afternoon only.

ASSISTANT: Please let me know if you have any other preferences in your journey.

USER: No more, thank you.

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

USER: No issues, thank you for the information.

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