You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Joshua Hall from Phoenix.

ASSISTANT: Nice to meet you Joshua.

USER: Can you help me to find a flight from PHX to EWR to attend a business meeting?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to travel on 02/20 and 02/22.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no flight available as per your request.

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

ASSISTANT: Most welcome.