You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: My name is Robert Walker, I want to book a flight from CA-SFO to visit comic-con with my friend at New York. Can you book a connecting flight for me?

ASSISTANT: When you are willing to travel?

USER: I will fly on 04/06 and return on 04/08.

ASSISTANT: Can you help me with your destination airport code?

USER: My destination point is NY-EWR.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.