You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Benjamin Turner.

ASSISTANT: Yes, Turner.

USER: Can you check whether any flight is available on 04/21 to 04/23?

ASSISTANT: Sure, may I know on which route I have to check for the flights?

USER: I will fly from DTW to EWR.

ASSISTANT: Please be on hold, Turner.

USER: Ok.

ASSISTANT: AA airlines is having a flight with ticket fare of 100, shall I proceed with booking?

USER: You can book it.

ASSISTANT: Your ticket has been booked with flight-1001, have a safe journey.

USER: Thank you.

ASSISTANT: Welcome.