You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Donna King. As I have a plan to travel Houston city which is famous for its art and culture. So, our friend have planned a small get to gather over there. Can you please help me in booking my flight ticket from MSP?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Thank you for the positive response. I am willing to travel from 08/18 to 08/20.

ASSISTANT: Can you please provide your destination airport code?

USER: Sure, my destination airport code is HOU.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, I will wait for your positive response.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Not a problem, anyway thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.