You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Dennis Thomas.

ASSISTANT: Dennis Thomas, how may I assist you with today?

USER: I want to book a direct flight from LGA to MSP, can you please help me?

ASSISTANT: Sure, I will help you. May I know your organised travel dates please?

USER: My depart date is Feb 8th and return date is Feb 10th.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: I regret to inform you that there are no flights available withe your preferences.

USER: No problem, thank you for your time.

ASSISTANT: Thank you for reaching us. Have a good day.