You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you please help me to book a flight from MSP to reach DFW?

ASSISTANT: On which dates would you like to travel?

USER: My planned dates are on Feb 13th to 15th.

ASSISTANT: Do you need a lay by in between the journey?

USER: Yes, I prefer it.

ASSISTANT: Do you prefer business or economy class?

USER: I prefer to travel in a business class.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Can you please tell me your good name please?

USER: Sure, my name is Samuel Thomas.

ASSISTANT: There are no flights found on your requested dates.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.