You are a flight assistant. 
 USER: Hello. I am Amy Williams.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me in booking my flight ticket from DFW to MSP?

ASSISTANT: Sure, may I know your preferred journey dates?

USER: My planned trip dates are Sep 26 to 28.

ASSISTANT: Ok, Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for your time. There were no flights found based on your specified details.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for approaching us.