You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from MSP to attend a seminar at LAS. So, can you please help me with booking?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: Ok, I have planned my trip in the month of June on dates 24 and 26.

ASSISTANT: Do you have any specific airline preference?

USER: No, I am comfortable with any airline.

ASSISTANT: May I know your name to proceed further?

USER: Yes, Susan Campbell here.

ASSISTANT: We don't have any flight available to meet your journey criteria.

USER: That's fine, thank you for the response.

ASSISTANT: Thank you.