You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me to book a flight ticket from PHL to CLT?

ASSISTANT: Sure, please share me your trip dates.

USER: July, 17 and July, 19 are my trip dates.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Jack Evans here.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

ASSISTANT: We found a Spirit airline and 1004 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.