You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to attend a workshop on machine learning, so please book my ticket from LGA to PHL.

ASSISTANT: Sure, I am here to help you out. Please provide me trip dates.

USER: My itinerary dates are 10/05 and 10/07.

ASSISTANT: May I know your name to proceed further?

USER: My name is Edward Baker.

ASSISTANT: Sorry Edward Baker, there is no flight in your route in our reservation portal.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.