You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Will you please book me a plane ticket from LAS to PHX?

ASSISTANT: Sure, please let me know your name.

USER: I am Karen Evans.

ASSISTANT: Thank you. May I know your travel dates?

USER: I will start on Apr 26 and return on Apr 28.

ASSISTANT: Ok, do you have class preference?

USER: No, I am okay with any class.

ASSISTANT: Ok, please wait for a while. Let me check.

USER: Sure.

ASSISTANT: Flight-1016 having single connection is available in AA Airlines and the ticket fare is 100 only in economy class. Flight departs at 3:00 hours and arrives at 21:00 hours. Is it ok for you?

USER: Fine, please proceed.

ASSISTANT: Your ticket is confirmed successfully and have a great flight.

USER: Thanks for your support.

ASSISTANT: You are welcome and thank you for reaching us.