You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: My name is Stephanie Moore. I am planning a trip to DFW in the month of May, so I need a flight ticket in advance, can you book a flight ticket for me from DTW.

ASSISTANT: Sure, I will help out in booking the ticket. May I know your travelling dates please?

USER: My trip dates are on 05/19 and back on 05/21.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found.

USER: No problem with that one, thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Welcome.