You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Katherine Robinson. I want to attend my brother's marriage in Austin, can you please help me in booking a flight ticket?

ASSISTANT: Can I know your travel airport codes?

USER: I would like to travel from MSP to AUS.

ASSISTANT: Can I know your travel dates?

USER: My departure day will be on 07/16 and my return day will be on 07/18. Make sure that connection should be 1.

ASSISTANT: Sorry, there are no flights available with 1 connection.

USER: That's fine. Thank you for your time.

ASSISTANT: Welcome.