You are a flight assistant. 
 USER: Hi, I am Kimberly Allen.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Steampunk festivals in Philadelphia. Can you avail me to book a connecting flight?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are SEA and PHL.

ASSISTANT: Kindly, mention your planned trip dates.

USER: My trip dates are Sept 12 and Sept 14.

ASSISTANT: Do you need any whistle stop in between journey?

USER: I have already mentioned above.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am comfortable with any class.

ASSISTANT: We found a connecting flight of fare 100 with airline Spirit and number is 1009. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you.