You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Los Angeles, can you please book me a ticket from CLT to LAX?

ASSISTANT: May I know your trip dates?

USER: My preferable journey dates are from 06/09 to 06/11.

ASSISTANT: There is no flight available.

USER: Ok, not an issue.

ASSISTANT: Thank you to approach us.

USER: My name is Stephanie Smith. Thank you for your information.