You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Margaret Roberts. Can you help me booking a flight ticket from MSP to LAX?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I will start on 05/16 and return on 05/18.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any airline preferences?

USER: No, but I need to return in the morning.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a break in my journey.

ASSISTANT: Sorry, there are no flights available at your request.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.