You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from LAS to DTW.

ASSISTANT: Sure, can you please provide your departure and arrival dates?

USER: My journey dates are Apr 26 and Apr 28.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a flight with single connection.

ASSISTANT: Do you need any preferred class?

USER: No.

ASSISTANT: Do you have any other specifications to be met?

USER: I prefer a normal cost airline.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of United Airlines, flight number-1019 class-economy and fare is 200. Would you like me to proceed?

USER: Go ahead.

ASSISTANT: Let me know your name to book the ticket?

USER: I am Catherine Perez.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.