You are a flight assistant. 
 USER: Hi, William Baker here.

ASSISTANT: Hello, How can I aid you today?

USER: I want to go for a  family trip in Denver, CO - DEN on 05/13, Can you please help me?

ASSISTANT: Sure, I can help you. Can you specify your departure details and date?

USER: Sure, My source is from Dallas & Fort Worth, TX - DFW on 05/11.

ASSISTANT: Is there any other requirements for you?

USER: Make sure that the price should not exceed 5000 with a single connection.

ASSISTANT: Ok, please wait for a while, I will check the availability and get back to you.

USER: Ok, Take your own time.

ASSISTANT: We are glad to inform you that, we found a Spirit airline flight, with number 1010, having price of 100, with 1 connection. Shall I proceed for the booking?

USER: That's great, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for using us.