You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Wilson.

ASSISTANT: Wilson, how may I help you?

USER: I would like to travel from DCA to PHX to meet my friend who was staying in Phoenix?

ASSISTANT: Sure, please share your itinerary dates.

USER: My trip dates are 02/21 and 02/23.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for contacting us.