You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I have planned to book a plane ticket from LAX to MSP, can you assist me?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My preferred dates are Sep 1st and Sep 3rd.

ASSISTANT: May I know your name?

USER: Lisa Moore.

ASSISTANT: Do you have any specifications?

USER: Make sure that my return time must be morning.

ASSISTANT: Which class do you prefer?

USER: I am Ok with any type of class.

ASSISTANT: Sorry Lisa Moore, no flights are available from MSP in the morning.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for choosing us.