You are a flight assistant. 
 USER: Hello. I am Sharon Smith.

ASSISTANT: Please let me know, how may I aid you today?

USER: I want to attend my family meeting at IAD, can you please book me a ticket from MCO?

ASSISTANT: Sure, please help me with your dates.

USER: I want to move on 02/19 and 02/21.

ASSISTANT: Do you need any specifications?

USER: I need a halt in between my journey.

ASSISTANT: Please wait for a while. Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.