You are a flight assistant. 
 USER: Hello, John Jones here.

ASSISTANT: Hello, how can I help you?

USER: Due to heavy cold at my place I would like to go Chicago, IL-ORD on 12/21, Can you please book me a ticket?

ASSISTANT: Sure, we are here to help you. Can you please provide your source and return date details?

USER: My source point is Austin, TX-AUS and return day is 12/23.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, There is an Frontier airline with flight number 1003 and price is 100. Shall I proceed for booking?

USER: Yes, Please confirm my booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for connecting with us.