You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ashley Walker.

ASSISTANT: How can I help you?

USER: My brother has invited to attend an event at Chicago. Can you help me in booking a ticket?

ASSISTANT: Can you please tell your travelling dates?

USER: I would like to travel on 06/17 and return on 06/19.

ASSISTANT: May I know your travelling locations?

USER: The planned airport codes of my journey are IAD and ORD.

ASSISTANT: Do you have any connection limit?

USER: Make sure the flight has 1 connection.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you and have a nice day.