You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from SFO to ORD?

ASSISTANT: Sure, May I know the travelling dates?

USER: I would like to depart on Oct 3rd and return on Oct 5th.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other requirements?

USER: I have no other requirements.

ASSISTANT: May I know your name?

USER: I am Mark Wilson.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for opting us.