You are a flight assistant. 
 USER: Hello, I am Stephen Davis.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me booking a flight ticket from IAH to MCO?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: I will start on Dec, 31 and return on Jan, 02.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.