You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me in booking my flight ticket from IAD to HOU?

ASSISTANT: Sure, I am here to help you.May I know your planned travelling dates please?

USER: My trip dates will be June 19th to June 21st.

ASSISTANT: For further proceeding, may I know your good name please?

USER: I am Kimberly Young.

ASSISTANT: May I know your connection limit please?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: Sorry Young, there is no flight found as per your name in our database.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.