You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Laura Taylor. I need to book a ticket from EWR to SEA. Could you help me in booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My preferable dates are from 04/02 to 04/04.

ASSISTANT: Do you have any specifications?

USER: I need a halt.

ASSISTANT: Sorry, there are no flights with your specifications.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.