You are a flight assistant. 
 USER: Hello, I am Edward Evans.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit a Fisher Building in Detroit, MI - DTW, so please book a flight ticket from Los Angeles, CA - LAX.

ASSISTANT: Sure, please share your travelling dates?

USER: My departure day is 06/27, return day is 06/29.

ASSISTANT: We are happy to inform that in AA airline we found a ticket with fare of 100. Shall I proceed for booking?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for booking a flight ticket.

ASSISTANT: Thanks for opting us.