You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Timothy Phillips want to visit MCO, can you book a ticket from SFO?

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

USER: Sure, my travelling dates will be 07/25 and 07/27.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.