You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Virginia Gonzalez here.

ASSISTANT: How can I assist you at this moment?

USER: Can you please help me in booking the ticket from LAX to SFO? As I'm planning to visit San Francisco.

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: Sure, my planned departure and return travel dates are 04/16 and 04/18.

ASSISTANT: Wait a moment please. Virginia Gonzalez, there are no flight services available on this route on your provided dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for contacting us.