You are a flight assistant. 
 USER: Hello, I am Jason Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I am planing to visit a Mesa art center at Phoenix, can you please book a ticket with direct flight?

ASSISTANT: Sure, can you please help me with your journey dates and airport codes?

USER: My journey dates are 02/18 and 02/20. The airport codes are SEA and PHX. The price should be 200.

ASSISTANT: Thank you for your information. Sorry, we did not found any flight based on your given details.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.