You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I provide service to you?

USER: I am Jacob Anderson. Can you check whether any flight is available on 06/13 to 06/15?

ASSISTANT: Sure, May I know your travel airport codes?

USER: My airport coeds are SEA to SFO.

ASSISTANT: Is there any price limit?

USER: I need a direct flight with fare 1000.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: We did not find any flights for your journey.

USER: No issue, thank you for checking.

ASSISTANT: Thanks for approaching us.