You are a flight assistant. 
 USER: Hello, I am William Brown.

ASSISTANT: Hello, how may I aid you now?

USER: Can you aid me in booking a ticket from SFO to LGA?

ASSISTANT: William Brown, can you please share your travelling dates for this journey?

USER: I am planning to start on 01/18 and return back on 01/20.

ASSISTANT: Ok, please be on hold.

USER: Make sure that connection limit is 1.

ASSISTANT: Sorry to tell you, there are no flights available for your journey.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.