You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Please help me out in booking the ticket from ATL to BOS.

ASSISTANT: I am glad to help you with your concern. Can you please share your trip dates?

USER: My trip dates will be Sept 9 to Sept 11.

ASSISTANT: Do you have any connection limit preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Do you have any specific time concern for your journey?

USER: My depart time must be in the evening.

ASSISTANT: Could you help me with your name please?

USER: Carol Lee is my name.

ASSISTANT: Thank you for sharing all the details that are required for your journey.Please allow me 2-3 minutes while I check with the availability of flights.

USER: Please proceed.

ASSISTANT: Thank you for waiting, Carol Lee.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, as per your requirement there is no connecting flight available for the mentioned dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.