You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Harris.

ASSISTANT: How may I help you?

USER: Can you please help me to book a flight ticket from LAX to ORD?

ASSISTANT: Sure, I am happy to help you. Can I know your travelling dates?

USER: Thank you. I am willing to travel on the dates of 03/28 and 03/30.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: I have found a flight having a connection limit 1. Can you find a flight ticket for me?

USER: Ok, please proceed with ticket booking. If the price limit is below 1000 then only book the ticket.

ASSISTANT: Sorry to say that there are no flight's available based on your budget.

USER: Its' ok, thank you for your time.

ASSISTANT: Thank you for contacting us.