You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I would like to book a flight ticket from New York, NY-EWR to attend a seminar at Las Vegas, NV-LAS, can you help me to book a flight ticket?

ASSISTANT: Sure, can you help me with your journey dates?

USER: My travelling dates on 03/25 to 03/27.

ASSISTANT: May I know your name?

USER: I am Nancy Martin.

ASSISTANT: A flight with price 200 having single connection is found in Spirit airline. Shall I proceed with it?

USER: Yes, you can proceed with this airline.

ASSISTANT: Your ticket is confirmed in flight number 1002.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.