You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am David Smith, want to travel from EWR to PHX. Please help me in ticket booking.

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: My trip dates are from 07/23 to 07/25.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found a flight ticket with a price of 200 and 1 connection.

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for contacting our agency.

USER: Welcome.