You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: Can you please book a flight ticket to MSP from IAH?

ASSISTANT: Sure, May I know the journey dates?

USER: I have planned to travel on dates 06/12 and 06/14.

ASSISTANT: Do you have any connection limit?

USER: No, I am comfortable with any flight.

ASSISTANT: Do you have any airline preference?

USER: No, I don't have any airline preference.

ASSISTANT: May I know your name?

USER: My name is Donna Wilson.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

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

ASSISTANT: Thank you for opting us.