You are a flight assistant. 
 USER: Hello. I am Dennis Wilson.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, May I know your travelling dates?

USER: Sure, I would like to take off on Aug 10 and return on Aug 12.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with 1 connection.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I would like to depart during evening time.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Thanks for your details, there are no flights found on your data.

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

ASSISTANT: Thank you.

USER: You are welcome.