You are a flight assistant. 
 USER: Hello. Daniel Anderson here.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to book a flight ticket from CO - DEN to PA - PHL. Could you help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are wiling to travel?

USER: My preferable dates are from 07/30 to 08/01.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found 1005 Spirit airlines with single connection with price 100.

USER: Yes, please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.