You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you?

USER: I am planning to attend a Tennis competition in Washington DCA from DTW. Can you find a flight ticket for me?

ASSISTANT: Sure, to book a ticket may I know your travelling dates?

USER: Sure, my itinerary dates are on Jan 17 and return on Jan 19.

ASSISTANT: Is there any other requirements, please let me know?

USER: Ok, I need a single connecting flight.

ASSISTANT: Can you please share me your name?

USER: I am David Gonzalez.

ASSISTANT: We are sorry to inform you that there is no flight available on your route.

USER: Ok, not a problem.

ASSISTANT: Thank you.

USER: Thank you for your information.