You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: Could you do me a favour in booking a plane ticket from LAS to DFW?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: Sure, my planned travelling dates are from 05/13 to 05/15.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: There is a flight 1015 in AA airline has the price 100. Can I proceed?

USER: Yes, please proceed.

ASSISTANT: Before proceeding, may I know your name please?

USER: Sure, my name is Frank Collins.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thanks a lot.

ASSISTANT: Thank you for approaching us, have a nice day.