You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be of your helping hand today?

USER: I am Nicole Phillips, I want to book a flight ticket to Los Angels CA-LAX. Help me in booking my flight ticket from Oakland CA-OAK.

ASSISTANT: Sure, I need your travelling dates for your journey?

USER: 09/02 to 09/04 are my travelling dates.

ASSISTANT: Ok, Please wait.

USER: Sure.

ASSISTANT: Sorry, no flights found on your travel dates for your journey.

USER: Its ok, thank you.

ASSISTANT: Thanks for choosing us.