You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking the flight ticket from MSP to AUS?

ASSISTANT: Sure, when are you planning to start and return on?

USER: My travel dates are July 16 and July 18.

ASSISTANT: Is there any time concern?

USER: No.

ASSISTANT:  Are there any more preferences that you want to avail?

USER: I need a single connection flight.

ASSISTANT:  On whose name I have to book the flight ticket?

USER: Dennis Wilson.

ASSISTANT: We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Not an issue, thank you for the information.

ASSISTANT: Welcome Dennis Wilson.