You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help can I do for you?

USER: I am Ryan White. Can you please book me a flight ticket from OAK to ATL to meet my friend?

ASSISTANT: Sure, may I know your preferable dates to travel?

USER: Sure, my preferable travelling dates are from 04/02 to 04/04.

ASSISTANT: As per your request there is a flight available from UA airlines with number 1009. Would you like to travel in this airlines?

USER: Yes.

ASSISTANT: Your booking is confirmed. Thank you for flying with our service.

USER: Thank you for helping me.