You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Phillips.

ASSISTANT: How may I help you?

USER: I want to visit a place in Boston. Can you book a ticket from CLT to BOS?

ASSISTANT: May I know your trip dates?

USER: I want to travel on 03/10 and 03/12.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flight found basis on your details.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for contacting us.