You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emma Smith here.

ASSISTANT: How may I assist you?

USER: I want to attend a Marriage in Chicago. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you. May I know your nearest airport codes please?

USER: My airport codes are LGA and ORD.

ASSISTANT: Can I have your planned travel dates please?

USER: My travelling dates are 01/31 and 02/02.

ASSISTANT: Do you have any specifications?

USER: I can afford up to 200 only.

ASSISTANT: Emma Smith, no flights has been found on your planned travel dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.