You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am looking for a flight from DEN to EWR, can you help me in booking?

ASSISTANT: Ok, I am here to help you with that. Can I know your planned trip dates?

USER: Sure, my planned travel dates are Feb 11 and Feb 13.

ASSISTANT: May I know your connection limit?

USER: Please look for a connecting flight.

ASSISTANT: Can I have your name?

USER: Myself Angela King.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say that, there are no flights available based on your travelling dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for approaching us.