You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Houston, please book a ticket from IAD to HOU.

ASSISTANT: Ok, please provide me your journey dates for enhanced search.

USER: My trip dates are 11/02 and 11/04.

ASSISTANT: May I know your name please to proceed further?

USER: My name is Paul Davis.

ASSISTANT: Please give me a minute.

USER: Make sure with 1 connection.

ASSISTANT: Paul, there are no flights available with 1 connection.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.