You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Janet Davis here.

ASSISTANT: How can I help you, Davis?

USER: I am planning to celebrate my birthday at my hometown which is at Denver, please book a flight ticket for me.

ASSISTANT: Sure, may I know your airport codes please?

USER: Sure, my airport codes are from ORD to DEN.

ASSISTANT: Can I have your planned dates of journey?

USER: I will start my journey on 04/22 and return back on 04/24. Ensure that my price limit is 200 with 1 connection.

ASSISTANT: Flight-1022 from delta airline is ready to serve you with ticket price of 100 and 1 connection only, shall I proceed booking?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for booking my tickets.

ASSISTANT: My pleasure, thank you for reaching us.

USER: Welcome.