You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: Could you help me in booking a flight ticket from PHX to PHL?

ASSISTANT: Sure, we are ecstatic to help you. When are you planning to go and return back from your journey?

USER: I want to fly on Feb 14, return on Feb 16.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I need a single connecting flight.

ASSISTANT: May I know your good name please?

USER: My name is Pamela Collins.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: My depart time should be evening.

ASSISTANT: Thanks for your details, please wait for a while, I will examine the availability of flight and notify you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that unfortunately there is no flights available by the given details.

USER: No problem, thank you.

ASSISTANT: Thanks for reaching us, wish you a great day.