You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Sandra Lee here. I'm planning to visit Detroit, can you please book a ticket from EWR to DTW?

ASSISTANT: Sure, may I know your trip dates please?

USER: Sure, my planned departure and return travel dates are 22nd and 24th of April.

ASSISTANT: Please wait for a while.

USER: Sure, my connection limit is 1. Search for the flights accordingly.

ASSISTANT: Thanks for waiting and sorry to inform you that there is no flight available as per your request.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Most welcome.