You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Carol Robinson from Washington. Can you please book a flight ticket from DCA to MCO?

ASSISTANT: Sure, please provide your planned travel dates.

USER: Thank you for your positive response, I want to take off on 10/01 and please confirm my return ticket also on 10/03.

ASSISTANT: Please hold on a moment, Carol.

USER: Ok.

ASSISTANT: Carol, no flights has been found on your required dates.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.