You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How canI aid you?

USER: My wish is to shoot a documentary on haunted place at MSP.

ASSISTANT: Ok, may I know your travel dates?

USER: This is the reason I have to book a ticket on 08/24. Will you help me?

ASSISTANT: Ok.

USER: And the return date is on 08/26.

ASSISTANT: Could you provide me your source point?

USER: Source point is Las Vegas, LAS.

ASSISTANT: Do you have any preference?

USER: I would like to book a ticket under the price limit of 200.

ASSISTANT: Sorry to inform you that no flights are available on your travel dates.

USER: Ok, I will go with another flight.

ASSISTANT: May I know your good name?

USER: Thank you for addressing me. Charles Robinson is my name.

ASSISTANT:  Thank you for availing us.