You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Donna Turner here.

ASSISTANT: How can I help you?

USER: I want to book a flight reservation on the route from PHL - PHL for a round trip, can you help me?

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

USER: My travelling dates for the following journey will be from 07/19 and I will be returning on 07/21.

ASSISTANT: Ok, please wait a moment.

USER: Ok please check for the flights having 1 connection limit.

ASSISTANT: Thank you for your waiting, I found a flight for you in Delta airlines with fare 100 and 1 connection. Can I book your ticket?

USER: Ok, you can proceed with booking my ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1019.

USER: Thank you for your humble assistance with booking my ticket.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: You are most welcome.