You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Virginia Brown. I just wanted to travel from EWR to DEN, can you please book a flight ticket?

ASSISTANT: Can I know your planning dates?

USER: My travel dates are 06/23 and 06/25.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: The flight 1023 of Delta airlines with 0 connections is available on your requested dates. Shall I book the ticket?

USER: But I wanted with connection as 1.

ASSISTANT: Sorry, there are no flights available with 1 connection.

USER: Don't proceed to book a ticket. Thank you for your help.

ASSISTANT: Welcome. Have a nice day.