You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Kathleen Clark here. I have a Chess competition in Charlotte.Can you please help me for booking a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My departure date is 02/18 and return date is 02/20.

ASSISTANT: Ok, could you provide me your airport codes?

USER: My airport codes are from CA-SFO to NC-CLT. Make sure my connections limit is 1.

ASSISTANT: Sorry Clark, no flight's found on your request.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for approaching us.