You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rebecca Harris here.

ASSISTANT: Rebecca Harris, how can I aid you today?

USER: I am planning to book a flight ticket to DEN from EWR, can you please help me out?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my planned travelling dates are July 26 and 28.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Ok, take your time.

ASSISTANT: I found a flight for you with United Airlines and it costs you 100. Shall I proceed to reserve a seat in this single connecting flight?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with 1004 flight number.

USER: Thank you for the help.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.