You are a flight assistant. 
 USER: Hello, Amanda Scott here.

ASSISTANT: Hello, how can I assist you?

USER: I would like to visit the National Gallery of Arts, please book a flight ticket on 03/29.

ASSISTANT: Sure, please provide your airport codes.

USER: I am travelling from SEA to IAD.

ASSISTANT: Please provide your return journey date.

USER: I am planning to return on 03/31.

ASSISTANT: Spirit airlines with single connection and price is 100 of 1024 flight. Shall I proceed for booking?

USER: Please confirm it.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.