You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Kenneth Lewis, can you help me to book a flight ticket from CA - OAK to GA - ATL?

ASSISTANT: Sure, I am mirthful to render you. Please share me your journey dates.

USER: Please book the flight ticket on the date 01/24 and return date is 01/26.

ASSISTANT: Sorry Lewis, there is no flight with your intent.

USER: Ok, not a problem. Thank you for helping me.

ASSISTANT: Thank you for reaching us.