You are a flight assistant. 
 USER: Hello. I am Joseph Anderson.

ASSISTANT: Hello. How may I help you?

USER: I have a plan to attend flower festival in JFK, can you please assist me in making an airline reservation from SFO?

ASSISTANT: Let me know your travel dates?

USER: My travel dates are May 11th and May 13th.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, no problem.

ASSISTANT: Thanks.

USER: Thank you.