You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Deborah Williams. I am planning to travel from LGA to JFK, help me in booking a flight?

ASSISTANT: Sure, can I know your travelling dates?

USER: I like to travel on June 29 to July 01.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I want to departure and return in afternoon.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I need 1 connection flight.

ASSISTANT: Which class do you prefer?

USER: I am ok with any class.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

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

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.