You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Brown.

ASSISTANT: How can I assist you Brown?

USER: I am planning to go Seattle for shopping purpose, Can you help me for booking a flight ticket please?

ASSISTANT: Ok, I am here to help you for booking a ticket, may I know your when you are willing to go shopping?

USER: I would like to start on 01/27.

ASSISTANT: May I know your shopping location code?

USER: My destination point is WA-SEA.

ASSISTANT: On what date  would  you like to return from SEA.

USER: My arrival date on 01/29.

ASSISTANT: May I know your price limit?

USER: I need price limit with in 200.

ASSISTANT: May I know from where you are planning to go and do the shopping?

USER: Source point is GA-ATl.

ASSISTANT: Please wait for a while, I will the check the  availability of flights.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates for shopping.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.