You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Christine Turner.

ASSISTANT: How may I help you today?

USER: I am looking to book a flight from LAS to LGA to meet my friend, can you help me for booking a flight ticket?

ASSISTANT: Sure, I will help you in booking. Can you please share your travel dates?

USER: My travelling dates are 02/03 and 02/05.

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

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.