You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I am John White. I want to book a flight ticket from MSP to AUS. Could you help me in booking?

ASSISTANT: Sure, may I know when you have planned to travel?

USER: My travelling dates are from Dec 29-31.

ASSISTANT: Please standby, I will check the availability of flights and revert to you.

USER: Ok, please check with my depart time in the evening and I need 1 halt. I prefer for business class.

ASSISTANT: Ok. We regret that there were no flights found from MSP to AUS.

USER: It's alright, no problem with that one. I can prefer any other source to reach my destination region. Thank you for your quick help.

ASSISTANT: Thank you for contacting us.