You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend music concert at SFO, can you please help me with booking a flight ticket from ORD?

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

USER: I would like to take off on Aug 18 and return on Aug 20.

ASSISTANT: Ok, please share your name.

USER: My name is Daniel Scott.

ASSISTANT: Let me know your connection limit.

USER: I am looking for a direct flight.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: Sorry, no direct flights are available on your preferable travel dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: You are welcome.