You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Nicholas Collins.

ASSISTANT: How can I help you?

USER: I am planning to attend music concert at EWR, can you please help me with booking a flight ticket from LAS?

ASSISTANT: May i know your travelling dates please?

USER: Sure, I would like to take off on 04/07 and return back on 04/09.

ASSISTANT: There is a single connection flight with 100 fare, can I proceed for booking in Delta airlines?

USER: Yes, please proceed with the booking.

ASSISTANT: Your booking is done in 1004 flight.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.