You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Could you please book a flight ticket from HOU to IAD?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travel dates are Oct 05 and Oct 07.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your good name?

USER: My name is Nicholas Wilson.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you.