You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Virginia Parker here.

ASSISTANT: How may I aid you?

USER: I would like to visit New York for a business conference, can you please help me out with booking of a flight ticket?

ASSISTANT: Virginia Parker, may I know your travelling dates please?

USER: Sure, I am willing to travel on 03/01 and please book my return ticket on 03/03.

ASSISTANT: What are your airport codes for this journey?

USER: Sure, I want to travel from DEN to LGA.

ASSISTANT: Sorry, no flights found on your requested route.

USER: Oh! So sad to hear.

ASSISTANT: Thank you for consulting with our agency.

USER: Thank you for the information.

ASSISTANT: Have a nice day.