You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As I am very exicited to see the white house, I am planning to visit Washington. Can you book a connecting flight?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My source point is Orlando FL-MCO and destination point is DC-DCA.

ASSISTANT: Please share your planned journey dates.

USER: My trip dates are 06/30 to 07/02.

ASSISTANT: May I know your good name please?

USER: Laura Johnson is here.

ASSISTANT: Sorry, no connecting flights available with your given details.

USER: Ok, no worries. Thank you for your quick response.

ASSISTANT: Thank you for opting us.