You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Eric Brown. I am planning to book a flight ticket with a price limit 200.

ASSISTANT: I will help you with that,  can you share me your travel dates?

USER: I am planning to visit Chihuly Garden in Seattle, on 04/17 to 04/19.

ASSISTANT: Let me know your journey points.

USER: My source from TX - DFW and my destination to WA - SEA.

ASSISTANT: Sorry for the inconvenience, There are no flights found with your requirement.

USER: Ok, not an issue. Thank you, for your service.

ASSISTANT: Thank you for being with us.