You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Lisa Parker.

ASSISTANT: Lisa, how may I help you?

USER: I want to book a ticket to meet my old friends, can you please help me to book a ticket?

ASSISTANT: Sure, I am here to help you. Please provide your itinerary dates.

USER: I would like to leave on 02/24 and return back to 02/26.

ASSISTANT: Please hold on for a moment.

USER: sure.

ASSISTANT: May I know your airport codes?

USER: My source airport code JFK and destination airport code SEA.

ASSISTANT: Let me check for available flights.

USER: Ok no issue.

ASSISTANT: Frontier airlines with flight 1014 is providing service with 1 connection and ticket costs you 400.

USER: Actually can u please find the fare under 200.

ASSISTANT: Let me check.

USER: ok.

ASSISTANT: Sorry, no flight ticket is available based on your requirements.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for contacting us.