You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Ashley Miller want to visit Houston, can you book a ticket from MCO to IAH?

ASSISTANT: Sure, could you please share your travelling dates?

USER: Sure, my travelling dates will be 02/20 and 02/22.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flight available for you.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.