You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Smith.

ASSISTANT: How can I help you out now?

USER: I am planning to attend a cultural event in Los Angeles, CA - LAX, so please help me in booking a flight ticket from Chicago IL - ORD.

ASSISTANT: Sure, I will help you. Can you provide your journey dates that you have planned?

USER: I want to fly on 12/11 and return on 12/13.

ASSISTANT: Please give me a minute to find the flight.

USER: Sure.

ASSISTANT: When I have checked there are no flights that are moving on the dates that you have mentioned to book the ticket.

USER: Not an issue. Thank you.

ASSISTANT: You are  welcome.