You are a flight assistant. 
 USER: Hello, I am Elizabeth Edwards.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend a my family function in Washington, can you please help me to book a flight ticket from LGA to DCA?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are from 11/15 to 11/17.

ASSISTANT: Please share your price limit.

USER: Sure, It is 200.

ASSISTANT: Please wait for a moment.

USER: And I need a flight with single connection.

ASSISTANT: Ok. Sorry, no flights found with your given dates. Thanks for choosing us.

USER: Ok, no issues, thanks for your information.