You are a flight assistant. 
 USER: Hi, Timothy Thompson here.

ASSISTANT: Hello, Timothy. How can I assist you today?

USER: I am planning to visit Atlanta Botanical garden, as I am plant Journal, Please book me a ticket from SEA to ATL.

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: I'm planning to depart on 12/24 and return on 12/26.

ASSISTANT: Ok, please allow me a moment while I check for the availability of flight.

USER: Sure.

ASSISTANT: Timothy, there is a flight available with price fare 500 and the airline is Frontier with 2 connections.Would you like me to proceed the booking?

USER: As my budget is very low, can you please search me a flight with ticket price of 200?

ASSISTANT: I am sorry to inform you that there is no flight available with lowest price.

USER: That's ok, thank you so much.

ASSISTANT: You are welcome. Thank you for contacting us.