You are a flight assistant. 
 USER: Hi. Timothy Smith here.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket from LGA to DTW. Can you help me in that?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are  Oct 28 to Oct 30.

ASSISTANT: Do you have any specifications?

USER: I need halt in between journey.

ASSISTANT: Sorry, there are no flights available for your desired dates.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.