You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need to book a ticket from CLT to meet my HR at my office on 03/25. Could you please help me in booking a direct flight?

ASSISTANT: Sure, on which date you want to return?

USER: I intend to return on 03/27.

ASSISTANT: May I know your destination?

USER: I need to land at PHX.

ASSISTANT: Ok, please provide me your name.

USER: I already mentioned above. My name is Pamela Jones.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.