You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Larry Roberts, want to travel from MSP to DFW to attend my conference meeting. Please help me in booking my ticket.

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: Thank you and my trip dates are from 01/02 to 01/04.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight and my departure flight should be in afternoon.

ASSISTANT: Larry Roberts, no flights has been found on your requirement.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.