You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Brandon Wilson, I want to book a direct flight to reach St. Paul. Can you help me with booking?

ASSISTANT: Please share me your source and destination codes.

USER: My source point is LAS and destination is MSP.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I need a flight on Aug 28 and return flight on Aug 30.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, thank you for the information.

ASSISTANT: Most welcome.