You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Joseph Mitchell.

ASSISTANT: Hello Joseph.

USER: I am planning to visit a Chicago from EWR to ORD. Can you help me out?

ASSISTANT: Sure, may I know your preferable dates of travelling?

USER: My preferable date are 12/20 to 12/22. Make sure my price limit is 200.

ASSISTANT: Based on your details, flight number 1026 from Frontier airline is available for you. Shall I proceed with it?

USER: Yes, you can proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a safe journey.