You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Kenneth Harris.

ASSISTANT: How can I help you?

USER: Can you book a ticket from CLT to BOS?

ASSISTANT: Sure, can you provide your journey dates?

USER: It's from 07/13 to 07/15.

ASSISTANT: Give me a moment.

USER: OK.

ASSISTANT: Sorry Harris, I didn't find any flight regarding your details.

USER: It's fine. Thank you for your immediate response.

ASSISTANT: Your welcome.