You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How may I aid you?

USER: I am Jason Perez need to book a ticket to SEA, can you please help me in booking from LAX?

ASSISTANT: Sure, let me know your airfare?

USER: I can afford upto 500.

ASSISTANT: Please provide your planned dates?

USER: My planned dates are from 08/25 to 08/27.

ASSISTANT: Sorry, there were no flights found with your given criteria. Thanks for reaching us.

USER: Thank you.