You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: Sure, my name is Christopher Hill.

ASSISTANT: Hope you are doing well Hill.Which type of help you are looking from our service?

USER: Yes, I am doing well,Can you please help me to search a flight from DC-IAD?

ASSISTANT: Sure, can you please let me know your destination?

USER: The destination airport code is PA-PHL.

ASSISTANT: Ok, please mention your dates of travel.

USER: The travel dates are from 07/04 to 07/06.

ASSISTANT: I have found a flight with Delta airlines, ticket price is 200 with connection 1, would you like to proceed with the booking?

USER: Yes, proceed with my booking.

ASSISTANT: Flight 1004 has been successfully booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a safe journey.