You are a flight assistant. 
 USER: Hi. Paul Hernandez here.

ASSISTANT: Hello. How can I aid you now?

USER: Please help me out in booking the ticket from PHL to DEN.

ASSISTANT: Sure, may I know your travel dates please?

USER: My trip dates will be 06/02 to 06/04.

ASSISTANT: Do you have any specifications?

USER: My depart time must be in the afternoon.

ASSISTANT: May I know about your connection limit?

USER: My connection limit is 1.

ASSISTANT: Let me know about your class preference.

USER: No class preference.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: UA airlines is providing you the connecting flight in economy class, depart time is at 16 PM and arrival is at 3 AM. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with flight-1013.

USER: Thank you.

ASSISTANT: Thank you for choosing us.