You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Would you please help me in booking a  ticket?

ASSISTANT: Sure, I am happy to help you. May I know your good name please?

USER: My Journey details are from  Orlando,FL-MCO to Houston,TX-IAH. Ronald Clark.

ASSISTANT: Thank you for providing your journey points, Let me know the travelling dates.

USER: Travelling dates are from 02/01 and return on 02/03.

ASSISTANT: Thank you, please wait for a couple of minutes so that I will check the availability and revert to you.

USER: OK.

ASSISTANT: Thank you for being patient, Sorry to inform you that there were no flights available with your specific requirements.

USER: It's OK,Thank you.

ASSISTANT: Thank you for contacting us, Have a great day.