You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me to book a flight from DEN to PHL?

ASSISTANT: Sure, may I know the planned travel dates?

USER: Sure, I want to depart on Jan 29 and need to return on Jan 31.

ASSISTANT: Please provide me the specifications.

USER: I need a connecting flight which return in the evening time.

ASSISTANT: May I know the name?

USER: Sure, I am Benjamin Wilson.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 100. Shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1015 in JetBlue Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.