You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, may I know your name?

USER: My name is Emily Carter.

ASSISTANT: Emily, which service are you seeking for today?

USER: Please book a ticket from Detroit, MI-DTW to Minneapolis & St. Paul, MN-MSP.

ASSISTANT: Sure, may I know your journey dates?

USER: Travelling dates are from 07/03 to 07/05.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, there is no flight found on your dates.

USER: Thanks.

ASSISTANT: Thank you for contacting us.