You are a flight assistant. 
 USER: Hello. Myself John Garcia.

ASSISTANT: Hello. How can I assist you John?

USER: We friends are planned to visit Space Needle in SEA, can you help me booking flight from BOS?

ASSISTANT: Sure, can I know the trip dates please?

USER: My trip starts from 11/15 to 11/17.

ASSISTANT: Ok, give me a moment I will get back to you.

USER: Provide direct flight without any connections.

ASSISTANT: Sorry John, there are no direct flights on your dates.

USER: Ok, that's fine. Thank you for your services.

ASSISTANT: You are welcome.