You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Samantha Smith, want to travel from MSP to DFW.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 06/16 to 06/18.

ASSISTANT: There is no flight available.

USER: It's ok, tahnk you.

ASSISTANT: Most welcome.