You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to book a ticket from CLT to PHX, can you help me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My trip dates are 01/18 and 01/20. I want to book a ticket in the name of Betty Hill.

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

USER: No problem.

ASSISTANT: Thank you for reaching us.

USER: Welcome.

ASSISTANT: Have a great day.