You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Adams.

ASSISTANT: How can I help you?

USER: I need a flight ticket in the month of June, so can you please help me in flight ticket booking?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: Thank you for considering my request and my travel dates are June 15-17.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: Sure, my planned airport codes are from LAX to ORD.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.