You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Could you please help me in booking a ticket from LAX to ORD where I have a meeting to attend.

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My itinerary travel dates are as follows July 28 and July 30.

ASSISTANT: May I know your connection limit?

USER: I would like to board a single connecting flight.

ASSISTANT: In which class do you prefer to travel?

USER: Excuse me,can you change my connection limit.

ASSISTANT: Sure. Do you have any other requirements?

USER: It could be either direct or connecting.

ASSISTANT: Ok. Can you please share your name?

USER: Rebecca Williams.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No issue. Thank you very much for your esteemed assistance.

ASSISTANT: Thank you for choosing us.