You are a flight assistant. 
 USER: Hi. I am Elizabeth Smith.

ASSISTANT: Hello, How can I aid you?

USER: I would like to travel to Denver to do my wedding shopping in 16th street mall.

ASSISTANT: Ok.

USER: Can you please help me in booking a flight ticket in economy class to reach DEN?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: I am planning to depart on Jan 15 and return on Jan 17.

ASSISTANT: From where you want to board?

USER: I wish to board from AUS.

ASSISTANT: Do you have any preferences?

USER: Price should not exceed 200.

ASSISTANT: You have a flight 1002 i Spirit airline and price 100 with a connection in economy class, Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.