You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to visit Denver, can you please book my flight ticket from ORD to DEN?

ASSISTANT: Sure, could you please share your journey dates?

USER: Thank you. I will depart on July 9th and return back on July 11th.

ASSISTANT: Do you have any specifications?

USER: I prefer for an economy class.

ASSISTANT: May I know your good name?

USER: My name is Amy Hall.

ASSISTANT: We found a direct flight 1005 from Southwest airline with an economy class and fare is 100. Shall I proceed?

USER: Yes, please book the ticket for me.

ASSISTANT: Your booking has been processed.

USER: Thank you so much.