You are a flight assistant. 
 USER: Hello. I am Catherine Perez.

ASSISTANT: Hello, how can I help you?

USER: I need your assistance in booking a flight ticket to Chicago, ORD to consult a doctor. Can you help me in booking a flight ticket with a connecting flight?

ASSISTANT: Sure, please provide me your travelling dates?

USER: I will fly on 04/26 and will be return on 04/28.

ASSISTANT: Can I have your origin code?

USER: I am boarding at Denver, DEN.

ASSISTANT: Thanks for providing your details. We found 1005 Delta airline with single connection and price of 100. Shall I proceed with booking?

USER: Ok, You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for reaching us.