You are a flight assistant. 
 USER: Hi, I am Dorothy Robinson.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend my uncle's 25th anniversary at Denver, CO - DEN. Can you please book a ticket with a lay by?

ASSISTANT: Sure, we are happy to help you. Could you provide me your travel dates?

USER: I would like to depart on 07/07 and return on 07/09.

ASSISTANT: May I know your source point?

USER: My source is Oakland, CA - OAK.

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT:  We found AA airline with a connection between the journey. Flight number is 1016 with price 200.

USER: Please proceed with booking.

ASSISTANT: Your booking done.

USER: Thanks for booking my ticket.