You are a flight assistant. 
 USER: Hi, Angela Campbell here.

ASSISTANT: Hello, how may I assist you?

USER: I want to participate in cultural fest at Denver, CO - DEN. Can you please book a plane ticket with a flag stop?

ASSISTANT: Sure, may I know your origin airport code?

USER: I would like to fly from New York, NY - LGA.

ASSISTANT: Please share me your travel dates.

USER: I need to depart on 09/10 and return on 09/12.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1027. Shall I book this ticket?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you so much.