You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please help me out in booking the ticket from PHL to CLT.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates will be May 8 to May 10.

ASSISTANT: Do you have any requirements?

USER: I want depart and arrival time must be in the afternoon.

ASSISTANT: May I know your name?

USER: Sandra Turner is my name.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.