You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Donald Anderson.

ASSISTANT: Donald, how may I render you today?

USER: I am looking to book a flight ticket from EWR to EWR to meet my friend. Can you help me for booking a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travelling dates are 05/04 and 05/06.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, I will wait.

ASSISTANT: Sorry Anderson, there are no flights available on your requested dates.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.

USER: Welcome.