You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ashley Taylor here.

ASSISTANT: How can I help you at this moment?

USER: Can you help me to find a flight from DFW to BOS?

ASSISTANT: Sure, I am here to help you in ticket booking. Can you please provide your journey dates to proceed further?

USER: My travelling dates are 01/19 and 01/21.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Ashley Taylor, there are no flight services available on this route on your provided dates.

USER: That's fine, thanks for your help and information.

ASSISTANT: Thank you for contacting us.