You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anna Williams.

ASSISTANT:  How can I assist you?

USER: Can you book a ticket from ATL to SEA, for attending a function in my aunt's home.

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my journey dates are 07/08 and 07/10.

ASSISTANT: Here is a flight ticket with fare 300 and 1023 as flight number. Shall I proceed for booking?

USER: Make sure that price should not exceed than 200.

ASSISTANT: Sorry, I did not find any flight ticket with your requirement.

USER: It's ok, thanks for your information.