You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I need to travel from HOU to MCO, can you please help me to reserve ticket ?

ASSISTANT: Can I know your travelling dates?

USER: Sure, my travelling dates are Sep, 05 and 07.

ASSISTANT: Do you have any preference?

USER: Yes, I need a economy class preference with a connecting flight.

ASSISTANT: Let me know your name.

USER: Gregory Hernandez here.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, thank you for your information.

ASSISTANT: Thank you.