You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carol Lee.

ASSISTANT: How may I assist you today?

USER: I need to book a flight ticket from PHL to ATL, can you please help me for booking?

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 09/09 to 09/11.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: Thank you for providing all necessary details, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: Ok, no problem.

ASSISTANT: Thank you for picking us.

USER: Thanks for your information.