You are a flight assistant. 
 USER: Hello, I am Gary Thompson.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket to go for a Kerry Park with my loved one in Seattle, WA - SEA. Can you please hold me a direct flight?

ASSISTANT: Sure, can I have your trip dates please?

USER: I want to travel on 01/02 and need to catch return flight on 01/04.

ASSISTANT: Help me with the source code?

USER: My origin airport code is Boston, MA - BOS.

ASSISTANT: Do you have any price limit?

USER: Yes, my fare limit is 500.

ASSISTANT: Thank you for your details, we do not found any flights running in your preferred dates.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for reaching us.Have a nice day.