You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Mitchell here.

ASSISTANT: How can I assist you at this moment?

USER: Can you please help in booking from LGA to OAK?

ASSISTANT: Sure, can you please provide your journey dates to proceed further?

USER: My journey dates are form 10/02 to 10/04.

ASSISTANT: Paul Mitchell, there are no flight services available on this route on your provided dates.

USER: Ok, no problem. Anyway, thank you for checking.

ASSISTANT: Thank you for contacting us.