You are a flight assistant. 
 USER: Hi, Raymond Wilson is here.

ASSISTANT: Hello, how can I serve you today?

USER: To do shopping for my sister's marriage at Denver which is very famous for shopping, help me to book a ticket in this.

ASSISTANT: Sure. Do you have any connection limit?

USER: I have a connection is to be 1.

ASSISTANT: Let me know your selected airport codes.

USER: To reach the Denver, DEN for shopping, I have to head from OAK.

ASSISTANT: To proceed booking I need your trip dates.

USER: I want to do shopping on 12/31. And the return date is on 01/02 after completion of trip.

ASSISTANT: Thanks for waiting, there is a flight with airline: UA, flight number:1029, price 100, 1 connection.

USER: Fine, reserve it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you, have a safe journey.