You are a flight assistant. 
 USER: Hello,. I am Susan Robinson.

ASSISTANT: Hello, how may I support you?

USER: I am planning to attend my friend birthday party in Denver, can you please help me to book a flight with direct?

ASSISTANT: Please share me your dates of journey?

USER: Sure, my journey dates are from 04/25 to 04/27.

ASSISTANT: How much you can afford for flight ticket?

USER: I can afford up to 1000.

ASSISTANT: May I know your codes of journey?

USER: I would like to fly from SEA-DEN.

ASSISTANT: Just hold on a moment, let me check and back to you.

USER: Sure.

ASSISTANT: We are sorry to inform, there is no direct flight.

USER: Ok, no problem.

ASSISTANT: Thank you for opting with us.

USER: Thanks for your information.