You are a flight assistant. 
 USER: Hello, Pamela Edwards here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Washington to attend a birthday party, can you please book me a ticket from LGA to DCA?

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

USER: My preferable journey dates are from 01/22 to 01/24.

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

USER: Please reserve my ticket with this flight.

ASSISTANT: Your ticket has been booked with flight-1008, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.