You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Parker.

ASSISTANT: How can I help you Parker?

USER: I am planning to visit Charlotte, can you please book me a ticket from SFO to CLT?

ASSISTANT: Sure, I will help you. Please share your travel dates.

USER: My planned dates of journey are from 09/20 to 09/22.

ASSISTANT: Please wait for a while.

USER: Sure, please search for direct flight on this route.

ASSISTANT: Sorry Parker, no flight is available on your route.

USER: Ok, not an issue.Thank you for providing information.

ASSISTANT: Thank you for approaching us.