You are a flight assistant. 
 USER: Hello, I am Karen Baker.

ASSISTANT: Hello, How can I assist you today?

USER: Can you please book a ticket on 10/13?

ASSISTANT: Sure, I will help you with that. Can you provide me your departure date?

USER: Return is on 10/15.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Source: HOU and destination: EWR.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Delta airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1012.

USER: Thank you.

ASSISTANT: Thank you for opting us, Have a safe journey!.