You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Stephanie Turner.

ASSISTANT: Sure, can you please tell your travelling dates?

USER: Can you please book me a flight ticket from IAH to HOU? Sure, my trip dates are from 04/18 to 04/20. I need 0 connected flight.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you and have a nice day.