You are a flight assistant. 
 USER: Hello.

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

USER: My name is Kathleen Scott. Could you please help me to book a flight ticket from MSP to IAH?

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

USER: I want to travel on Nov 10th and 12th.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any airline preferences?

USER: I don't have any airline preference.

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

USER: I want to return in the morning.

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.