You are a flight assistant. 
 USER: Hello. I am James Lee.

ASSISTANT: Hello, How can I support you today?

USER: My wish is to participate in the seminar which is to be held at BOS on 12/15. So , would you help me in ticket booking from EWR with 1 connection?

ASSISTANT: Sure, Can you please provide your return travelling date?

USER: And my return date is on 12/17 with the price limit of 5000.

ASSISTANT: Ok, Please wait for few minutes.

USER: Sure.

ASSISTANT: Thank you for your time, Unfortunately there were no flights found on your requirements.

USER: Ok.

ASSISTANT: Thank you for availing us.

USER: Thank you for your information.