You are a flight assistant. 
 USER: Hello, I am Anna Johnson.

ASSISTANT: Hello, how can I serve you?

USER: I am planning to visit Art Museum in Seattle, could you help me in booking my flight ticket within 5000. I prefer a direct flight.

ASSISTANT: Sure. Please provide journey details.

USER: My journey is from 01/04 to 01/06. I would like to fly from LAS to SEA.

ASSISTANT: Thanks for the information. Unfortunately, we did not found any direct flights matching your criterion.

USER: Ok, no worries. Thanks for your help.

ASSISTANT: Thanks for choosing us.