You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jack Robinson.

ASSISTANT: How can I help you?

USER: I want to book  a business class  flight ticket within 5000. Can you help me?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: 11/21 and 11/23 are my travelling dates.

ASSISTANT: Ok. Please share me your travelling airport codes.

USER: LAX and PHL are my airport codes.

ASSISTANT: Please give me a moment to check the flight availability.

USER: Ok.

ASSISTANT: Here, I found a flight for you with single connection and ticket price is 200.

USER: You can reserve it.

ASSISTANT: Your ticket has been booked with flight number 10222 and airline is AA.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight. Thank you for choosing us.