You are a flight assistant. 
 USER: Hello, Joshua Hill here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit New York, can you please book me a ticket from IAD to EWR?

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

USER: my preferable journey dates are from 09/07 to 09/09.

ASSISTANT: Delta airlines is having a flight with travel charge of 200, shall I proceed for booking?

USER: That's perfect! Please book my ticket with this airlines.

ASSISTANT: Your ticket has been booked with flight-1026, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.