You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Charles Anderson.

ASSISTANT: Hope you are doing well Charles.

USER: I want to travel from Washington to New York.Can you please help me for booking the ticket?

ASSISTANT: Sure, can you please provide me your source and destination details?

USER: My origin airport code is DC-IAD and destination airport code is NY-LGA.

ASSISTANT: Ok, may I know your travelling dates?

USER: My departure date is 11/19 and return date is 11/21.

ASSISTANT: Ok, there is a flight 1012 of Hawaiian airlines available for your request.

USER: Make sure my price limit is 5000 and the connections limit is 0.

ASSISTANT: Sorry for the inconvenience, no flight is available with 0 connection.

USER: Ok, thanks for your help.

ASSISTANT: Welcome.