You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I would like to visit Minneapolis and St. Paul. Can you please book me a flight ticket to see Minneapolis river walk?

ASSISTANT: Sure, I am happy to help you. May I know your travel dates?

USER: My travelling dates are 12/10 and 12/12.

ASSISTANT: Please help me with your journey codes.

USER: My journey codes are from IAH to MSP.

ASSISTANT: Can I get your name?

USER: Ryan Thomas is my name.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you.