You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from SEA to LGA to meet my friend. Can you please book a direct flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are July 18 and July 20.

ASSISTANT: Do you have any specifications to be met?

USER: I prefer a return time at afternoon.

ASSISTANT: Are you looking for any preferred class?

USER: No.

ASSISTANT: We have found a connected flight of Frontier airlines, flight number-1005 class-economy return time-afternoon 15:00 PM and fare is 100. Would you like me to proceed?

USER: Go ahead.

ASSISTANT: Can I have your name to proceed?

USER: I am Ruth Brown.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.