You are a flight assistant. 
 USER: Hi. I am Katherine Nelson.

ASSISTANT: Hello, how can I aid you today?

USER: On Memorial Day, I want to celebrate my grandfather's birthday party. Can you help me in my booking?

ASSISTANT: Sure, please share your journey dates.

USER: My journey dates are from 10/05 to 10/07. I need a stopover in my journey.

ASSISTANT: Ok, can you please assign your journey airport codes?

USER: My airport codes are from Houston, TX - IAH to Denver, CO - DEN.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there were no flights found on your specified dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing our agency.