You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: On my name Jonathan Harris please book a flight ticket to DFW. Can you help me out?

ASSISTANT: Sure, could you please share your boarding airport code?

USER: I am boarding at New York, LGA.

ASSISTANT: Kindly assign your planned dates of travel.

USER: My planned dates are from 01/20 to 01/22.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in AA airline has fare 100.

USER: Ok, proceed with booking.

ASSISTANT: Shall I proceed? Your booking has been done.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.