You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kathleen Wright here.

ASSISTANT: How may I help you out?

USER: I am looking a flight from SFO to LGA, can you help me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 10 and 12 of May.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, not a problem.

ASSISTANT: Thank you for reaching us.