You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Lewis.

ASSISTANT: How may I help you?

USER: I am looking for the flight ticket which is having a connection limit 0. Can you please help me to find that?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 10/06 and 10/08.

ASSISTANT: Can I know your airport codes too?

USER: The source and destination airport codes are DTW and HOU.

ASSISTANT: Ok, please wait for a while.

USER: Ok, please make sure that the price limit should not exceed 200.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, thank you for checking for the flight.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.