You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I need to book a flight ticket from HOU to MCO, can you help me in booking a flight ticket?

ASSISTANT: Ok, I am here to help you with that. Can I know your planned trip dates?

USER: Sure, my journey dates are Apr 21 and Apr 23.

ASSISTANT: May I know your name?

USER: Sure, Laura Harris here.

ASSISTANT: Do you have any other requirements?

USER: I prefer maximum one connection.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available based on your travelling dates.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thank you for reaching us.