You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Thomas Johnson. I am planning to travel SFO in the month of February, so I need an advance ticket booking, can you book a flight ticket from OAK?

ASSISTANT: Can you please tell your travelling dates?

USER: I probably planning my journey on 02/08 and back on 02/10.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Ok, no problem with that one. Thank you for your help.

ASSISTANT: Have a nice day and take care.