You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to travel from BOS to SFO, can you please help me in flight booking?

ASSISTANT: Sure, can you please share your journey dates?

USER: I will start on Feb 06, return on Feb 08.

ASSISTANT: Are you looking for any preferred connections?

USER: I want direct flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Can I have your name to proceed further?

USER: My name is Thomas Lopez.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.