You are a flight assistant. 
 USER: Hello, I am Ryan Gonzalez.

ASSISTANT: Hello, how can I help you now?

USER: I need to book a flight ticket from LGA to DCA. Can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you. Please mention your price limit?

USER: 200 is my budget.

ASSISTANT: May I know your planned journey dates?

USER: 08/16 and 08/18 are my travelling dates.

ASSISTANT: Do you want any connection in between the journey?

USER: Yes, I need single connection.

ASSISTANT: Thanks for the details, Sorry there is no any flight available on your journey route.

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

ASSISTANT: Thank you for visiting us, we hope see you again.