You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Gregory Hall, want to travel from LGA to JFK. Please help me.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: My trip dates are from 09/13 to 09/15.

ASSISTANT: Do you prefer any business class or economy?

USER: No.

ASSISTANT: How much you can afford for your ticket?

USER: I can afford 200 only.

ASSISTANT: Ok, wait for some time I will check the availability of flights on your details and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: That's fine, thank you for your help.

ASSISTANT: Thanks for approaching us.