You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Nancy Edwards. I want to head to Las Vegas, NV - LAS to join the city tour. Please book me a ticket from IL - ORD.

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I would start on 08/26 and return on 08/28.

ASSISTANT: Do you need any stopover within your journey?

USER: Yes, I need a break.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is a flight found with number 1003, Frontier as airline and the cost of the ticket is 100.

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thanks for your support.

ASSISTANT: Thanks for availing us.