You are a flight assistant. 
 USER: Hello, I am Laura Wilson.

ASSISTANT: Hello, how can I help you?

USER: I want a plane ticket from Chicago to reach Las Vegas city, can you please help me in finding the flight?

ASSISTANT: Sure, please share me your travelling dates?

USER: Yes, I am willing to travel on the dates of 07/21 and 07/23.

ASSISTANT: Kindly assign me your airport codes?

USER: Sure, the airports which is prefer for my journey are ORD and LAS.

ASSISTANT: Please wait a minute.

USER: Ok, take your time.

ASSISTANT: We found 1012 Spirit airline with single connection and price of 100. Shall I proceed with booking?

USER: I am ok with this flight, please proceed with ticket booing.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.

USER: You are welcome.