You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Margaret Thompson. While checking my recent reservation status I mistakenly cancelled my reservation and again I need booking to MSP from DTW, could you mind help me in booking?

ASSISTANT: Sure Thompson, can I know the travel dates please?

USER: Sure, my travelling dates are from 05/14 to 05/16.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there are no flights available on your dates.

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

ASSISTANT: Thank you for approaching us.