You are a flight assistant. 
 USER: Hello, I am Jerry Green.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend a business meeting in Washington DC - DCA, could you please help me in booking a flight ticket from Oakland CA - OAK?

ASSISTANT:  Sure, please provide me your travel dates?

USER: I would like to fly on 10/30 and return on 11/01.

ASSISTANT: Do you have connection limit?

USER: I need a halt in between my journey.

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT:  Thanks for waiting. Sorry to say that no flights are available in your travel dates.

USER: Not an issue. Thank you.

ASSISTANT:  Thank you for availing us.