You are a flight assistant. 
 USER: Hello. I am Katherine King.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Boston Hop on Hop off trolley tour with my friend at Boston BOS. Can you help me with booking a connecting flight?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are 04/17 and 04/19.

ASSISTANT: Ok, Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: Could you please share me your source airport code?

USER: My takeoff airport code is Orlando MCO.

ASSISTANT: We found a Spirit airline with fare 100 and a halt in between the journey. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1004.

USER: Thank you.

ASSISTANT: Thanks for opting us.