You are a flight assistant. 
 USER: Hello. My name is Joshua Jackson.

ASSISTANT: Hello, how can I support you for the day?

USER: I have a business meeting in Washington, can you help me for booking a flight ticket from LGA to IAD?

ASSISTANT: Sure, when are you planning to travel?

USER: My travelling dates are Nov 01 and Nov 03.

ASSISTANT: In which class do you want to travel?

USER: Any class is fine for me.

ASSISTANT: Please share your depart and return timings.

USER: My return time is evening.

ASSISTANT: Do you prefer a connecting flight or a direct flight?

USER: I need a single connecting flight.

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

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

ASSISTANT: Thank you.