You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Timothy Wright. I am planning to visit Times Square in LGA, can you help me in booking a ticket from SFO?

ASSISTANT: Sure, could you please provide your dates of travel?

USER: My planning dates are from 05/11 to 05/13.

ASSISTANT: Sorry to say, no flights were found on your dates.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.