You are a flight assistant. 
 USER: Hi, I am William Thompson.

ASSISTANT: Hello,. How may I help you?

USER: Can you please book me a ticket within price 200 as I need to attend my uncle's house warming ceremony?

ASSISTANT: Please specify your travelling codes?

USER: Sure, I will catch my flight from ATL and land at SEA.

ASSISTANT: Please let me know journey dates?

USER: My probable dates are 06/23 and 06/25.

ASSISTANT: Ticket can be booked with flight connections 1, price 200, airline Spirit having flight number 1014. Shall I book a ticket?

USER: Please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you for your prompt service.

ASSISTANT: Thanks.