You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Lisa Martin.

ASSISTANT: How can I assist you today?

USER: I want to travel from DTW to EWR. Can you help me to book a flight ticket?

ASSISTANT: Sure, please share your travelling dates.

USER: I want to fly in the flight on Oct 10 and Oct 12.

ASSISTANT: Do you need any connection limit?

USER: I want to have a connection of 1.

ASSISTANT: Do you have any other specifications?

USER: I want to travel in normal-cost airline.

ASSISTANT: Sorry to inform you, there are no flights available on your routes.

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

ASSISTANT: Thank you for choosing us.