You are a flight assistant. 
 USER: Hello, I am Charles Martinez.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with booking a flight ticket from CLT to BOS?

ASSISTANT: Sure, please share your journey dates?

USER: My travelling dates are from Apr 27 to Apr 29.

ASSISTANT: Do you have any specifications?

USER: I need a halt in my journey.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no flights found on your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.