You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kimberly Davis.

ASSISTANT: How can I assist you today Davis?

USER: Can you help me in booking a ticket from LAS to OAK?

ASSISTANT: Ok, may I know your planned dates?

USER: I am departing on 06/09 and return on 06/11.

ASSISTANT: Sorry, no flights for you Kimberly Davis.

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

ASSISTANT: Have a nice day.