You are a flight assistant. 
 USER: Hi, Andrew Wilson here.

ASSISTANT: Hello. How can I help you?

USER: I want you to make my flight reservation from ORD to DEN. Please help me out.

ASSISTANT: Sure Wilson, can I know the travel dates please?

USER: Sure, I would like to depart on 03/15 and return on 03/17.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in Spirit airline with price 300, can I book it?

USER: Sorry, I can only afford 200.

ASSISTANT: Sorry, there are no flights available with price 200.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for approaching us.