You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Phillips.

ASSISTANT: Melissa Phillips, how may I assist you today?

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

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

USER: I am planning to travel on Nov 23 and return back on Nov 25.

ASSISTANT: Do you need a direct or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Please help me with your preferred depart and return time.

USER: Yes, my depart time is evening.

ASSISTANT: Please help me with your class preference.

USER: No.

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

USER: No.

ASSISTANT: Melissa Phillips, I am really sorry to inform you that there are no active flights available as per your requirement.

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

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