You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Please help me in booking a flight ticket from DFW to DEN.

ASSISTANT: Sure, may I know your good name?

USER: Betty Wilson here.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I will start on May, 9 and return on May, 11.

ASSISTANT: Is there any connection limit?

USER: I would prefer single connection.

ASSISTANT: Do you have any more specifications?

USER: No, thank you.

ASSISTANT: We found a connecting flight 1024 from Spirit airline with a fare 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.