You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best support you?

USER: I completed my research in San Francisco, so planning to go home. Book a flight to SEA. I need direct flight between my journey.

ASSISTANT: Sure, is there any price limit?

USER: Price limit can be 200.

ASSISTANT: May I know your schedule date?

USER: Travel dates are 08/31 to 09/02.

ASSISTANT: Ok, may I know  your source airport code.

USER: Source airport code is SFO.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: To proceed further I need to know your name?

USER: I am Kimberly Roberts.

ASSISTANT: Sorry there is no direct flight on your schedule dates.

USER: Thanks for sharing valuable information.

ASSISTANT: Thanks for connecting us.

USER: Ok.

ASSISTANT: Wish you a nice future in research.

USER: Thank You so much.