You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Dennis Collins. I want to book a flight ticket to attend my grandfather's birthday at GA-ATL from CO-DEN . Can you help me?

ASSISTANT: Sure, can you please provide me your trip dates?

USER: 03/31 and 04/02 are my travelling dates.

ASSISTANT: Do you have any other specification?

USER: I need a break in my journey.

ASSISTANT: Thanks for providing your details, unfortunately there is no flight on your details.

USER: No issue. I will choose another alternative.

ASSISTANT: Thanks for choosing us.

USER: Thank you.