You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I oblige you today?

USER: I would like to visit the American Museum of Natural History at New York with my friends. Can you help me in booking a ticket?

ASSISTANT: Sure, when are you planning to travel?

USER: I have planned to travel on Apr 27 and return on Apr 29.

ASSISTANT: Sure, do you need a direct flight or a connecting flight?

USER: I need a direct flight.

ASSISTANT: Please share your airport codes?

USER: My journey airport codes are LAS and LGA.

ASSISTANT: May I know your good name?

USER: My name is Janet Perez.

ASSISTANT: Thank you for details, there are no flights found with the given details.

USER: Ok, not a problem. Thank you for the information.

ASSISTANT: Thank you.