Hello, I am Brian Miller.
user
Hello. How can I help you?
assistant
I want to travel from 04/08 to 04/10, Can you please book a ticket for me?
user
Sure, please provide me your journey points?
assistant
Origin: EWR and Destination: DEN.
user
Sorry, no flights are available.
assistant
Ok. Thank you.
user
 Thank you, have a nice day.
assistant