You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend my friend's wedding anniversary, could you please help me in booking a ticket?

ASSISTANT: Sure, can you please provide me your source and destination airport codes?

USER: My source and destination airport codes are JFK and ORD.

ASSISTANT: On which dates are you planning your trip?

USER: My planning dates are from 03/13 to 03/15.

ASSISTANT: Can I have your good name please?

USER: My name is Jacob Clark.

ASSISTANT: There are no flights available on those dates, Clark.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you so much for reaching us.