You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: My name is Ronald Davis.  Could you please book my ticket from IAH to OAK?

ASSISTANT: Davis, please share your itinerary dates.

USER: Sure, travel dates are 09/11 and 09/13.

ASSISTANT: Please hold on.

USER: Ok, make it fast.

ASSISTANT: UA airlines with flight 1000 is available.

USER: That's fine, please book the flight ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thanks a lot.

ASSISTANT: Thank you for choosing us.