You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Anna Wright. I want to go to DEN next week, can you please book a flight ticket from EWR?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of travelling?

USER: I want to take off on 09/23 and book my return ticket also on 09/25.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: Oh! It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Thank you for approaching us, hope you have a great day.