You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out today?

USER: I am Barbara Carter.

ASSISTANT: Ok.

USER: Could you please help me with booking a ticket from PHL to DTW?

ASSISTANT: Sure, I am here to help you. May I have your trip dates?

USER: My travelling dates are from 04/21 to 04/23.

ASSISTANT: Ok. Do you have any specifications?

USER: Flight has to be with a connection.

ASSISTANT: We found a Spirit airline with flight number 1004. That matches your request. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket is reserved, Thank you.

USER: Thank you.