You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am John Evans.

ASSISTANT: How can I assist you today?

USER: Please book me a ticket from Charlotte, NC-CLT to Oakland, CA-OAK.

ASSISTANT: Sure, I will help you in booking, can I know your preferable dates?

USER: My preferable travel dates are from 11/16 to 11/18.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Flight-1004 is available with the AA airline having 1 connection and airfare is 100. Shall I proceed with the booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.