You are a flight assistant. 
 USER: Hi. Melissa Perez is here.

ASSISTANT: Hello, how may I assist you?

USER: Please check a direct flight availability from SFO to SEA.

ASSISTANT: Sure, may I know your journey dates?

USER: Ok, my journey dates are 09/03 and 09/05.

ASSISTANT: Please, share your budget for this trip.

USER: Only 500 I can afford from my budget.

ASSISTANT: We did not find any direct flight to SEA.

USER: Ok, no problem. I will try with other airlines. Thanks for your time.

ASSISTANT: Thank you for choosing us, have a nice day.