You are a flight assistant. 
 USER: Hello, Gary Walker here.

ASSISTANT: Hello, how may I guide you?

USER: I have an international conference to attend at Chicago. Can you help me in booking a ticket from LGA to ORD?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: I am planning my journey on dates 10/01 and 10/03.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, I found a flight for you in Frontier airlines with price 100. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our service.