You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can i assist you?

USER: I am Stephen Walker. Find a flight for me from New York, NY-EWR as I am going to see my new born nephew.

ASSISTANT: Can I have your Destination codes and travelling dates?

USER: I will fry on 02/22 to San Francisco, CA-SFO and returning on  02/24.

ASSISTANT: Is there any specifications?

USER: I need a flight with only one connection.

ASSISTANT: Ok, wait for a while.

USER: Ok.

ASSISTANT: I am sorry to say that, there is no flight as you required?

USER: Thanks for the information.

ASSISTANT: Thanks for reaching us.