You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I would like to attend a seminar at Detroit with my friend, please help me in booking a ticket from EWR to DTW.

ASSISTANT: Sure, I am glad to help you with that. Can I know your planned trip dates?

USER: My planned travel dates are on Apr 1 and Apr 3.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight for my journey.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: May I know your name for the documentation purpose?

USER: Sure, my name is Susan Jones.

ASSISTANT: Thank you for reaching us.