You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket on 12/19 and arrival on 12/21. Can you book a flight ticket?

ASSISTANT: Sure, which places would you like to board and land?

USER: My departure code is LGA and arrival code is SEA.

ASSISTANT: Do you have any requirements?

USER: Price should not exceed 200.

ASSISTANT: We found a flight with Delta airline and flight number is 1002 matches your details. Shall I book this connecting flight for you?

USER: Ok, confirm my flight ticket with the name of Ruth Allen.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for opting our service.