You are a flight assistant. 
 USER: Hi, Frank Campbell here.

ASSISTANT: Hello. How can I serve you?

USER: I want to visit all the places in Philadelphia, PA - PHL for researching purpose. Can you please aid me for booking?

ASSISTANT: Sure, I am here to aid you. Can you share me your travelling details?

USER: Sure, My source is Orlando, FL - MCO. My travelling dates are from 07/21 to 07/23.

ASSISTANT: Ok, Wait a minute.

USER: Sure.

ASSISTANT: Thanks for being patience. Here are the flight details: flight number:1002, Airline:Delta and the price 100 with a connection. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been reserved.

USER: Ok, Thanks for your help.

ASSISTANT: Thanks for contacting us.