You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Mary Mitchell. Please book a flight ticket for my round trip to Philadelphia, PA - PHL.

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: Sure, my travel dates are 06/02 and 06/04.

ASSISTANT: Please wait for a moment.

USER: OK.

ASSISTANT: There is a connecting flight 1002 of Frontier airlines, shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you.

ASSISTANT: Welcome.