You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen King.

ASSISTANT: How may I help you?

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

ASSISTANT: Sure King, I am here to help you. When you are willing to travel?

USER: Sure, I would like to take off on 12/21 and return on 12/23.

ASSISTANT: Just a moment.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: King sorry to inform, no flights are available with your requirements.

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

ASSISTANT: You are welcome.