You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you book a flight ticket from PHL to PHX?

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

USER: My planned travel dates are Apr, 9 and Apr, 11.

ASSISTANT: Can I have your name please?

USER: Elizabeth Davis here.

ASSISTANT: Do you need a connecting flight?

USER: Yes.

ASSISTANT: Do you have any other specifications?

USER: I need to return at morning time.

ASSISTANT: I found an economy class in Frontier airlines with fare 100 and it is a direct flight. Can I book your ticket?

USER: Please book.

ASSISTANT: Ok, your booking is confirmed with flight number 1007.

USER: Thank you.

ASSISTANT: Thank you for choosing us.