You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ronald Carter.

ASSISTANT: How may I assist you today?

USER: I want to book a ticket from ATL to MSP, for attending a function in my aunt's home. Hope you are helping over that.

ASSISTANT: Sure, may I know your travel dates to check available flights for you?

USER: Sure, I will be travelling on 03/31 and 04/02.

ASSISTANT: Let me check, please wait.

USER: Sure, get back with good airlines.

ASSISTANT: Thanks for your patience, based on your request there is a flight which is exactly matched for you. Shall I proceed?

USER: Ok, Is it having the price validity is 200?

ASSISTANT: Sorry, I could not find any flight with your price.

USER: It's ok, thanks for checking.

ASSISTANT: It's my pleasure, have a nice day.