Hello.
user
Hello, how can I aid you for today?
assistant
Rachel Wilson here. I have an important program to attend, so could you help me to book a  ticket from LAS to DTW.
user
I am here to help you about that. Can you please provide your planned dates of journey?
assistant
My planned travel dates are as follows Jan 07 to Jan 09.
user
Do you need any connecting flight for your journey?
assistant
I have no preferences for this journey.
user
Sorry Rachel Wilson, there are no flights which travels on your planned dates of journey.
assistant
No issue, thank you very much for the assistance.
user
You are welcome, thank you for reaching us.
assistant