You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please check for the flights for my journey from LAS to EWR?

ASSISTANT: I will help you. May I know your travel dates?

USER: My journey dates are from Mar 30 to Apr 1.

ASSISTANT: Can I know your name?

USER: My name is Jerry Anderson.

ASSISTANT: May I know your class preference?

USER: I only need 1 connection flight, I don't have any other preferences.

ASSISTANT: Ok, please wait. Let me check.

USER: Sure.

ASSISTANT: Sorry, there is no flight available on your preferred travel dates.

USER: Oh! That's fine. Anyways, thank you for checking.

ASSISTANT: You are welcome and thank you for choosing us.

USER: Most welcome.