You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gregory Gonzalez here.

ASSISTANT: How can I assist you now?

USER: I want to travel from IAD to ORD for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can I have your travel dates please?

USER: My travelling dates are from 10/17 to 10/19.

ASSISTANT: Ok Gregory Gonzalez, please wait a moment.

USER: Ok, I will wait.

ASSISTANT: I have found a flight with connection 1 and price 100. Shall I proceed with booking?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok Gregory Gonzalez, your booking has done with flight number 1022.

USER: Thanks for helping me.

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