You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Charles Miller.

ASSISTANT: Yes.

USER: I want to travel from ORD to SEA, could you help me in booking the ticket?

ASSISTANT: Sure, please provide me your travelling dates?

USER: The dates of travel are from 04/26 to 04/28.

ASSISTANT: Yes, there is a flight available with your request.

USER: Please book the ticket.

ASSISTANT: Ok. Your reservation has been done successfully with flight 1005 of AA airlines.

USER: Thank you for helping me out.

ASSISTANT: Thank you and have a nice day.