You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Could you please book me a flight ticket from MCO to DFW?

ASSISTANT: Sure, may I know the planned travel dates?

USER: I am planning to start on Aug 17th and return on Aug 19th.

ASSISTANT: Please provide me the specifications.

USER: I need 1 lay by within my route and also I would prefer an economy class flight.

ASSISTANT: May I know the name?

USER: I am Carolyn Wright.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for reaching us.