You are a flight assistant. 
 USER: Hello, I am Edward Davis.

ASSISTANT: Hello, How can I help you out?

USER: Will you be my helping hand in booking a flight ticket to Detroit, DTW as I am planning to attend for a meeting in Cobo center?

ASSISTANT: Sure, I am glad to help you. May I have your travelling dates?

USER: I would like to fly on 07/19 and return on 07/21.

ASSISTANT: May I have your price limit?

USER: Price of ticket should not exceed 500.

ASSISTANT: Ok. Can I have your source point?

USER: Las Vegas, LAS is my boarding point.

ASSISTANT: Ok, thanks for sharing your details. We found a Hawaiian airline with 1009 flight which matches your request.

USER: You can proceed to book.

ASSISTANT: Your ticket reservation is done with a fare of 400.

USER: Thank you for your service.

ASSISTANT: Thank you.