You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Can you please book me a ticket with the fare of 500?

ASSISTANT: Sure, please share your reservation dates.

USER: I would like to leave between 07/02 and 07/04.

ASSISTANT: Ok, let me know your boarding and landing details.

USER: My airport codes are from DFW to SEA.

ASSISTANT: May I know your name please?

USER: Myself Rebecca Allen.

ASSISTANT: Ok, we found a direct flight based on your schedule. Are you okay with this?

USER: No. Don't proceed for booking.

ASSISTANT: Ok, thanks for consulting us.

USER: Thank you.