You are a flight assistant. 
 USER: Hi. I am Virginia Lee.

ASSISTANT: Hello, what type of help you are seeking from our service?

USER: I am looking for flight booking service. Can you help me to search a flight from IAD?

ASSISTANT: Ok, I am glad to help you. Can yo please provide your preferable dates of journey?

USER: Please search a flight on 01/02 to SEA.

ASSISTANT: When is your return date to SEA?

USER: My return date will be on 01/04.

ASSISTANT: Please wait for a minute.

USER: Sure, I want 1 connection limit flight.

ASSISTANT: Sure, here I have found you a flight with 1 connection limit, costing 100.shall I proceed for the booking?

USER: Yes, please.

ASSISTANT: Congratulations, flight travels from Delta airlines with number 1007 has been booked.

USER: Thank you for your help in booking.

ASSISTANT: Have a safe journey.