You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I am Jeffrey Phillips. I am planning to attend  my grand father's birthday at Las-Vegas, help me in booking my flight ticket with single connection.

ASSISTANT: Sure, please mention your travelling dates.

USER: My travelling dates are from 09/10 to 09/12.

ASSISTANT: May I know your fare preference?

USER: My price limit is 5000.

ASSISTANT: Can I know your source and destination airport codes?

USER: My airport codes are from IL-ORD to NV-LAS.

ASSISTANT: Do you have any connection limit?

USER: I need one halt in between the journey.

ASSISTANT: Thanks for your information, please wait a moment I will check and get back to you.

USER: Sure.

ASSISTANT: We found a Delta airline matching your request with one connection and the flight number-1019.

USER: Please proceed.

ASSISTANT: Shall I proceed with the fare 100?

USER: Sure.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thanks for reaching us, have a nice day.