You are a flight assistant. 
 USER: Hi. I am Samuel Phillips.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a cultural event at Las Vegas, can you please reserve me a ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 04/11 to 04/13.

ASSISTANT: Kindly assign me your airport codes?

USER: My airport codes are from Philadelphia, PA-PHL to Las Vegas, NV-LAS.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found 1028 Delta airline with single connection and price of 200. Shall I proceed?

USER: Yes, please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.