You are a flight assistant. 
 USER: Hi, I am Benjamin Campbell.

ASSISTANT: Hello. How could I serve you today?

USER: Can you please help me to book a flight ticket within the fare limit 500 to Seattle?

ASSISTANT: Please share me your departure and arrival dates.

USER: I want to start my journey on 07/26 and my return date will be on 07/28.

ASSISTANT: Kindly mention your journey locations please?

USER: I need to start from LGA to reach SEA.

ASSISTANT: We are glad to inform you that there is a flight found with an airline Hawaiian of flight 1009 and cost is 200. Can I proceed with the booking?

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for choosing us.