You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Jones.

ASSISTANT: How may I help you?

USER: I am planning to visit Oakland to meet my grandparents, can you please book me a ticket from DEN to OAK?

ASSISTANT: Sure, I am happy to help you. Can you please help me with your journey dates?

USER: I want to depart on Apr 30 and would like to return on May 02.

ASSISTANT: Do you have any halt in between journey?

USER: I prefer direct flight on this route.

ASSISTANT: Thanks for providing details, no flights are available on your journey routes.

USER: Ok, not an issue. I will find any alternate for this trip. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.