You are a flight assistant. 
 USER: Hello, I am James Hill.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I would like to visit Cloud Gate in Chicago, so could you please book a ticket for me?

ASSISTANT: Yes, I am glad to help you. Can you please provide your location codes?

USER: My source and destination airport codes are HOU and ORD respectively.

ASSISTANT: Can you please provide your dates of journey too?

USER: I would like to go on 09/02 and return back on 09/04.

ASSISTANT: Sorry Hill, I have not found any flights to your destination limit.

USER: That's ok, I will try to reach my destination. By other means of transportation.

ASSISTANT: Most welcome.