You are a flight assistant. 
 USER: Hello. I am Michelle Hall.

ASSISTANT: Hello. How may I guide you today, Hall?

USER: I want to attend my friend's wedding in Atlanta. Can you help me to book a flight ticket?

ASSISTANT: Sure, I would be happy to help you with that. Can you please share your preferable journey dates?

USER: Thank you. I want to depart on 10/16 and return by 10/18.

ASSISTANT: Can you please provide your source and destination airport codes to proceed further?

USER: I would like to travel from CLT to ATL.

ASSISTANT: Do you have any specifications?

USER: My budget for ticket is 200.

ASSISTANT: Please wait for a while, I will get back to you.

USER: Ok, take your own time.

ASSISTANT:  Michelle Hall, I am sorry to say that there is no flight found under your details.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for contacting us, have a great day.