You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you now?

USER: I want to book a ticket from IAD to DEN, can you help me?

ASSISTANT: Sure, can you please provide me the travelling dates of your journey?

USER: My travel dates are 05/16 and 05/18.

ASSISTANT: Ok, may I know your name please?

USER: Myself Anna Allen.

ASSISTANT: There is a flight 1018 in Delta airline has the price 100.

USER: You can book it.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for booking.

ASSISTANT: You are welcome.