You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to consult my family doctor in Chicago. Can you book me a ticket from DEN to ORD?

ASSISTANT: Sure, May I know your travelling dates?

USER: I would start on Feb 14th and return on Feb 16th.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 flag stop within my route.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Daniel Carter.

ASSISTANT: You have a connecting flight 1025 in Spirit  airline and price 100, Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your support.

ASSISTANT: Thank you.