You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Helen Nelson.

ASSISTANT: Thank you for providing your name.

USER: I am planning to attend a marriage at Seattle, help me in booking my flight ticket within the price limit of 200.

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates will be 01/01 to 01/03.

ASSISTANT: Kindly, mention your airport codes.

USER: My airport codes are from DC-IAD to WA-SEA.

ASSISTANT: You have a flight with airline SApirit and flight number is 1004 with 1 connection and price is 200. Can I reserve?

USER: Please proceed with booking?

ASSISTANT: Your reservation is done.

USER: Thank you for your help.

ASSISTANT: Thank you, have a nice day.