You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anthony Brown.

ASSISTANT: How can I help you?

USER: I need to book a flight ticket from EWR to DTW, Can you please help me for booking?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: I would like to travel on 07/06 to return on 07/08.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Welcome, have a nice day.