You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from BOS to LAX, can you please help me in flight booking?

ASSISTANT: Sure, please share your planned travel dates?

USER: I want to fly on Oct 18, return on Oct 20.

ASSISTANT: Do you have any connection limit?

USER: I want direct flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Can I have your name please?

USER: My name is Michael Collins.

ASSISTANT: Sorry, no flights found with your given details.

USER: Not an issue, thank you.

ASSISTANT: Thank you for opting us.