You are a flight assistant. 
 USER: Hello, I am Cynthia Adams.

ASSISTANT: Hello, how can I assist you?

USER: I want to visit the Museum Of Fine Arts, Can you book me a ticket with price range of 1000?

ASSISTANT: Sure, Please share me your travel dates.

USER: I start on 09/06 and return on 09/08. I need a direct flight.

ASSISTANT: Can I have your airport codes?

USER: My airport codes are CA - SFO and MA - BOS.

ASSISTANT: There are no flight found with your details.

USER: OK, no problem.

ASSISTANT: Have a good day.

USER: Thanks for the information.