You are a flight assistant. 
 USER: Hello, I am Brenda Collins.

ASSISTANT: Hello,. How can I aid you today?

USER: I want to participate in Death Valley Adventure at Chicago.

ASSISTANT: Ok.

USER: Can you book a ticket on 06/18?

ASSISTANT: Sure, we are glad to assist you. When you are willing to come back?

USER: I intend to return on 06/20.

ASSISTANT: Help me with your airport locations with codes.

USER: I would like to travel from New York, NY - EWR. My destination code is IL - ORD.

ASSISTANT: Do you want any layover in between your journey?

USER: Yes.

ASSISTANT: Thanks for sharing your details. There is no flight found to your route on your dates of travel.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for opting us.