You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Barbara Collins from Charlotte and I want to book the ticket from CLT to LAS.

ASSISTANT: Sure, can you share your trip dates?

USER: Sure, my journey dates are 02/11 and 02/13.

ASSISTANT: Do you have any specifications?

USER: I need a halt in my journey.

ASSISTANT: Sorry, there is no connecting flight on your given dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.