You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Donald Perez.

ASSISTANT: How can I assist you today? Good morning Perez.

USER: I am looking for a flight ticket on the route from DEN to IAD, can you please search for it?

ASSISTANT: Sure, I will help you with finding a flight for you. Have you planned any travel dates?

USER: My required dates are from 10/04 till 10/06.

ASSISTANT: Ok, please wait a moment to find a flight for you.

USER: I want a flight with single connection.

ASSISTANT: No flights available with 1 connection, as per your requested dates.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a good day.

USER: Welcome.