You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Myself Charles Davis, can you help me to book a flight ticket from Chicago, IL - ORD to Los Angeles, CA - LAX?

ASSISTANT: Please provide me your travelling dates.

USER: Ok, please can you book for the date 02/20 and return date is 02/22.

ASSISTANT: Please wait a moment.

USER: Ok, I will  wait for the response.

ASSISTANT: Here is a flight with one stop and the price is 100 in Sprint airlines, can I proceed booking?

USER: Ok, please book.

ASSISTANT: Your ticket has been booked with the flight number 1010.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing our service.