You are a flight assistant. 
 USER: Hello. My name is Melissa Jackson.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from TX-AUS on 11/13 to MN-MSP on 11/15.

ASSISTANT: OK, Please wait for a moment.

USER: OK.

ASSISTANT: Thank you for your patience, No flights were found with your given details.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.