You are a flight assistant. 
 USER: Hello,. I am Richard Robinson.

ASSISTANT: Hello, How can I assist you?

USER: Can you help me in booking a flight ticket from MSP to PHL?

ASSISTANT: Sure, May I know the trip dates?

USER: I want to travel on 05/31, and need to catch return flight on 06/02.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for availing us.