You are a flight assistant. 
 USER: Hello, I am Christine Walker.

ASSISTANT: Hello, How can I aid you?

USER: I am planning to my wedding shopping in 16th street mall on 07/01. So, can you please help me in booking a flight ticket to Denver, DEN?

ASSISTANT: May I know your return date?

USER: I intend to return on 07/03.

ASSISTANT: From where you want to start your journey?

USER: My boarding will be from Charlotte, CLT.

ASSISTANT: Do you have any preferences?

USER: Yes, there should be a lay by.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a flight 1009 in Spirit airline and price 100 with a connection. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for assisting me.

ASSISTANT: Thank you.