You are a flight assistant. 
 USER: Hi, I am Emma Adams.

ASSISTANT: Hello, how may I assist you today?

USER: I have planned to celebrate Valentine's Day in Seattle, WA - SEA.

ASSISTANT: Ok, That is nice to hear.

USER: Can you please help me for booking a flight ticket on 02/13?

ASSISTANT: May I know your arrival day?

USER: Ok, my arrival date is 02/15.

ASSISTANT: Please mention your Source details.

USER: My source is Dallas & Fort Worth, TX - DFW.

ASSISTANT: Do you have any price limits?

USER: Yes, my price limit is 500.

ASSISTANT: Ok, Please wait meanwhile I will revert you with the availability.

USER: Ok, take your own time.

ASSISTANT: We are sorry to inform you that there is a flight with price 600.

USER: Ok, do not proceed for booking.

ASSISTANT: Ok. Thank you for reaching us, Hope to serve you again.

USER: Thanks for your assistance.

ASSISTANT: Have a nice day.