You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking my flight ticket from HOU to MCO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned travel dates are Nov 21-23.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Susan Miller.

ASSISTANT: Do you have any connecting flight requirement.

USER: I prefer a direct flight.

ASSISTANT:  Do you need any other specifications?

USER: I am comfortable to fly in economy class.

ASSISTANT: Sorry, there are no flight tickets available with your requirements.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching our service.