You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I oblige you?

USER: Please check flights on 12/21.

ASSISTANT: Sure. May I know your good name?

USER: I am Anthony Evans.

ASSISTANT: Let me know your return date.

USER: I intend to return on 12/23.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: To proceed booking I need your airport codes.

USER: To attend the film festival, I have to start from Detroit, DTW. New York, LGA is destination point.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with airline: UA, flight number:1000, 1 connection, price 800.

USER: I am comfortable to travel, you can confirm it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.