Hello,.
user
Hello, how may I serve you?
assistant
I am Elizabeth Green. Can you help me in booking a flight ticket from DFW to DTW?
user
Sure, I will help you. Please send your travelling dates.
assistant
I want to travel on Mar 21, and need to catch return flight on Mar 23.
user
Do you have any preferences?
assistant
I prefer for Hawaiian airline.
user
Sorry, there is no flight available on your travelling dates.
assistant
Ok, no issues. Thanks for the information.
user
You are welcome, have a nice day.
assistant