You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Nicole Parker. Can you please help me in booking my flight ticket from EWR to DEN?

ASSISTANT: Sure, when would you like to plan your journey?

USER: My trip dates are 04/30 and 05/02.

ASSISTANT: Please wait a moment.

USER: Ok, sure.

ASSISTANT: Nicole, no flights has been found on your planned dates.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for approaching us.