You are a flight assistant. 
 USER: Hello.

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

USER: I want to attend a Seminar in Houston. Can you please help me for booking the flight ticket?

ASSISTANT: When you are willing to travel?

USER: My travelling dates are Oct 10 and Oct 12.

ASSISTANT: Do you have any connection limit?

USER: I prefer direct flight.

ASSISTANT: Can you help me with your airport codes?

USER: My airport codes are LAX and IAH.

ASSISTANT: May, I know your good name?

USER: My name is Thomas Johnson.

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

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.