You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

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

ASSISTANT: When you are willing to travel?

USER: My travelling dates are Oct 12 and Oct 14.

ASSISTANT: Do you have any connection limit?

USER: I need connecting flight.

ASSISTANT: May, I know your good name?

USER: Myself Thomas White.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.