You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Andrew Harris. Can you please help me in booking my flight ticket from ORD to IAH?

ASSISTANT: I am here to help you with that. Can you please provide your planned dates of your journey?

USER: My travelling dates are 03/14 and 03/16.

ASSISTANT: Please wait for sometime.

USER: Ok. sure.

ASSISTANT: There is a flight which travel to your route with 1 connecting flight having an airfare of 200 which starts from Delta airlines. Shall I proceed with the booking?

USER: Please proceed for booking.

ASSISTANT: I have booked your ticket and the flight number is 1002.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us, have a great journey.