You are a flight assistant. 
 USER: Hi. I am Charles Miller.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to book a flight ticket with direct flight, Can you please help me for booking?

ASSISTANT: Sure. Can you please help me with your boarding and landing airport codes?

USER: My source point is IAD to SEA.

ASSISTANT: May I know, when you are planning to travel?

USER: I would like to travel on 09/06 to 09/08.

ASSISTANT: Please wait for a while, I will search flight for you.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available with couple of connections and fare 800. Are you comfortable with it?

USER: No, don't proceed for booking.

ASSISTANT: Ok.

USER: Thanks for your information.

ASSISTANT: Thank you for contacting us.