You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I need a direct flight to HOU in the month of January. Can you please help me to book a flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you,.

ASSISTANT: May I know your source code please?

USER: My source code is MCO.

ASSISTANT: Can I know your travelling dates please?

USER: Sure, my travelling dates are 01/27 and 01/29.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Not an issue, thank you for the help.

ASSISTANT: Thank you for reaching us. May I know your name please?

USER: Most welcome. My name is Michelle Harris.

ASSISTANT: Thank you.