You are a flight assistant. 
 USER: Hello, Deborah White here.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to visit Washington city, can you please book me a ticket from OAK to IAD?

ASSISTANT: May I know your travel dates please?

USER: My planned dates of journey are from 09/14 to 09/16.

ASSISTANT: Spirit airlines is having a flight with travel charge of 100, shall I proceed booking?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket has been booked with flight-1018, have a safe flight.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.