You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Angela Anderson here.

ASSISTANT: How may I assist you?

USER: I was planning to meet my boss who lives in DFW, can you check for the flights from JFK?

ASSISTANT: Sure, let me know your travel dates?

USER: My journey dates are from 1st April to 3rd April.

ASSISTANT: Do you need any class preference?

USER: No, but I need a normal cost airline.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: AA airline with the ticket fare of 100 and a halt in between the journey. Shall I proceed?

USER: And I need a business class flight. So, please check with it.

ASSISTANT: Sure.

USER: Oh! That's very sad to hear from your side. Anyways, thank you for checking. Thank you for checking.

ASSISTANT: Sorry to say that there are no flight service available on your business class .

USER: No issues. Welcome.

ASSISTANT: Thanks for reaching us, have a nice day.