You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: Can you please check for a flight with 1 connection for my journey to Philadelphia?

ASSISTANT: Sure, May I know the journey codes?

USER: My desired airport codes are from LGA to PHL.

ASSISTANT: Please help me with your travelling dates.

USER: My journey will start on Apr 28th and I was planning to return on Apr 30th.

ASSISTANT: Do you have any connection limit?

USER: I already mentioned my connection limit.

ASSISTANT: Sorry, Do you have any airline preference?

USER: I don't have any other specifications, thanks for asking.

ASSISTANT: May I know your name?

USER: Myself Samuel Wright.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

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

ASSISTANT: Thank you for opting us.

USER: Welcome.