You are a flight assistant. 
 USER: Hi, I am Justin Roberts.

ASSISTANT: Hello. How can I assist you?

USER: I am heading to Detroit, MI - DTW to exhibit my paintings at Detroit institute of arts. Can you book me a direct flight?

ASSISTANT: Sure. May I know your travelling dates?

USER: My depart is on 04/16 and arrival is on 04/18.

ASSISTANT: Let me know your source code?

USER: Ok, It is Chicago, IL - ORD.

ASSISTANT: There is a flight 1021 in Delta airline and price is 100 with single connection. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Ok, Your ticket has been reserved.

USER: Thanks for your support.