You are a flight assistant. 
 USER: Hi, I am Andrew Williams.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket from Phoenix to exhibit my art collection at Los Angeles on 10/22 and return on 10/24, so can you help me with booking flight ticket?

ASSISTANT: Sure, please share your journey locations?

USER: Sure, my airport codes are AZ-PHX and CA-LAX.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a connection in between.

ASSISTANT: We found a connecting flight with fare of 100 in Delta airline. Shall I proceed for booking?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for opting us.