You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Parker.

ASSISTANT: Nancy, how may I aid you?

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

ASSISTANT: Sure, please provide your trip dates.

USER: My travel dates are from 04/12 to 04/14.

ASSISTANT: Please hold on for a while.

USER: Ok.

ASSISTANT: AA airlines with flight 1015 is available.

USER: Ok. You can proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.