You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Young.

ASSISTANT:  How can I assist you?

USER: I am planning to visit Space Center at Houston for research purpose, can you book a ticket from Chicago?

ASSISTANT: Sure, may I know  your travel dates?

USER: I will leave on 06/23 and arrive on 06/25.

ASSISTANT: How much can you afford for the ticket?

USER: I can afford up to 500.

ASSISTANT: Could you provide  me your travel points?

USER: I want to travel from ORD to HOU.

ASSISTANT:  Do you have any connection limit?

USER: I need a single stopover in between journey.

ASSISTANT: We found a connecting flight JetBlue with flight number 1009 and fare is 100.

USER: Okay, please proceed.

ASSISTANT:  Your booking is confirmed.

USER: Thank you.

ASSISTANT:  Thank you for  opting us.