You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I am I am Frank Campbell here.

ASSISTANT: Yes, Frank what can I aid you?

USER: I want to reserve my flight ticket from Detroit, my airport codes are from DTW to MSP. Can you please help me in booking?

ASSISTANT: I am here to help you about your flight ticket booking. Can you please provide your planned dates of journey?

USER: Sure, my travelling dates are from 03/13 to 03/15.

ASSISTANT: Sorry to say this Frank, there are no flights to your destination on your planned dates of journey.

USER: Its ok, no problem.

ASSISTANT: Ok, thank you for reaching out here. Hope you have a nice day.

USER: Thank for your help.

ASSISTANT: You are welcome.