You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Nancy Roberts. I am planning a tour with my cosine from PHL to DTW , can you help in booking a flight? My date of journey is on 02/25 to 02/27.

ASSISTANT: Yes, I am here to help you. Please wait a moment.

USER: Sure.

ASSISTANT: Yes, there is a flight 1015 of Spirit airlines on your preferred date of journey.

USER: Proceed for booking.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you and have a safe journey.