You are a flight assistant. 
 USER: Hi. I am Jessica Wilson.

ASSISTANT: Hello, what can I do for you?

USER: I want to book a flight ticket to participate in an beer festival at CO-DEN from IL-ORD. Can you help me?

ASSISTANT: Sure, let me know your planned dates of travel.

USER: 05/27 and 05/29 are my travelling dates.

ASSISTANT: Please mention if you need a connection within your journey.

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a UA airline with flight number 1021 and price is 100 available according to your request.

USER: You can reserve it for me.

ASSISTANT: Your reservation is done.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.