You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Thomas Perez here. I would like to visit Boston for a business meeting. Can you please book the ticket from MSP to BOS?

ASSISTANT: Can I know your travel dates?

USER: The departure day is on 09/18 and return day is on 09/20. Make sure that connection should be 1?

ASSISTANT: Sorry, there are no flights available with 1 connection. Shall I book the ticket?

USER: Ok, please don't proceed. Thank you for your time.

ASSISTANT: Welcome.