You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you please book a flight ticket from IAH to DFW?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Sure, my trip dates are June 13 and June 15.

ASSISTANT: May I know your name to proceed further?

USER: My name is Justin Turner.

ASSISTANT:  Justin Turner, do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Sorry Justin Turner, there is no direct flight as per your travel dates.

USER: That's ok, thank you for the response.

ASSISTANT:  Justin Turner, thank you for reaching us.