You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know your good name?

USER: My name is Shirley Hill.

ASSISTANT: How can I assist you?

USER: I want to celebrate my birthday party in Houston, so please book a flight ticket from WA-SEA to TX-IAH.

ASSISTANT: Sure. May I know your travelling dates?

USER: My departure day is 08/10, return day is 08/12. And my price limit is 5000.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We found that there is a flight available with Frontier airline, flight number 1011 with price 100 and 1 connection. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your flight is confirmed.

USER: Thanks for your good service.

ASSISTANT: Thank you for opting us.