You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Carolyn Thomas, can you help me to book a flight from CLT?

ASSISTANT: Ok, may I know your destination?

USER: My destination airport code is MSP.

ASSISTANT: Ok, let me know your travel dates too.

USER: My travelling dates are 09/15 and 09/17.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry Carolyn Thomas, there is no flight found with your preferences.

USER: Ok, no issues. Thank you for your time.

ASSISTANT: Welcome Carolyn Thomas, have a good day.