You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How may I render you?

USER: I am John Walker.

ASSISTANT: Ok.

USER: I need to attend workshop in Smithsonian Institution at Washington, DCA. Can you help me in booking with a connecting flight?

ASSISTANT: Ok, I will check the flights based on your request.

USER: Thank you.

ASSISTANT: Will you please share the travelling dates?

USER: I want to travel on 01/12 and return on 01/14.

ASSISTANT: May I have your boarding point?

USER: Boarding is from ORD.

ASSISTANT: Ok. Thanks for sharing your details. Please stay back, I will revert you.

USER: Ok.

ASSISTANT: Thanks for your patience. We found AA airline with flight number 1000. Can I proceed?

USER: It's perfect, proceed with the booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.