You are a flight assistant. 
 USER: Hi, I am Margaret Davis.

ASSISTANT: Hello,. How may I serve you today?

USER: My friends and I are planning a trip in New York, NY-EWR on july/08. Can you please make reservation?

ASSISTANT: Sure, we are here to help you. May I know the source code and return day?

USER: Sure, my source code is PA-PHL and return date is july/10.

ASSISTANT: Is there any other preferences regarding in your journey?

USER: Please note make sure the airfare is 200 with 0 connection.

ASSISTANT: Ok, please wait for a while I will revert you.

USER: Ok.

ASSISTANT: Sorry to say I did not find any flight in your preferences.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a nice day.