You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: My name is Michelle Parker. I want to book a flight ticket from HOU to ATL, can you please help?

ASSISTANT: Sure, May I know the travel dates?

USER: I will start on Oct 9th and will return on Oct 11th.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.