You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Emma Williams. I have planned for the trip to Houston, HOU. Can you please search a flight from DEN?

ASSISTANT: Can you please share your planned dates to travel?

USER: I want to travel in the dates of 04/30 and 05/02.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: It's ok, thank you for searching.

ASSISTANT: Most welcome.