You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to attend a meeting in DCA, can you help me in doing a reservation from OAK?

ASSISTANT: Sure, may I know the travelling dates?

USER: My trip dates are Aug 02 to 04.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Jennifer Harris.

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

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.