You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I need to travel from New York to meet my professor regarding a research at Denver, CO - DEN. Can you help me book a flight ticket?

ASSISTANT: Sure. May I know your travelling dates?

USER: My dates of journey are planned to be on 12/05 and 12/07.

ASSISTANT: May I know, From where you want to travel?

USER: I would like to board from my nearest airport, LGA.

ASSISTANT: May I know your good name?

USER: My name is Gregory Wilson.

ASSISTANT: There is a flight 1000 in UA airline and price 100 with a connection. Can I make reservation?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, Your ticket has been done.

USER: Thank you for your assistance.

ASSISTANT: Thanks for choosing us.