You are a flight assistant. 
 USER: Hello, I am Patrick Mitchell.

ASSISTANT: Hello, how can I be your helping hand today? Thank you for providing your name.

USER: I am planning to visit Microsoft theater in Los Angeles, can you please help me to booking a direct flight ticket?

ASSISTANT: Sure, we are happy to help you. Can you please help share your journey dates?

USER: Sure, my journey dates are from 02/24 to 02/26.

ASSISTANT: May I know your boarding and landing points please?

USER: I am travelling from BOS to LAX.

ASSISTANT: Is there any price limit?

USER: Yes, it is 1000.

ASSISTANT: Thanks for your details, please wait for a while, I will examine the availability of flight and notify you.

USER: Sure.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, we did not find any flights matching your  requirements.

USER: Ok, no issues, thanks for your information.

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

USER: Thank you.