You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please make a reservation from LGA to  PHL to attend a meeting in Philadelphia?

ASSISTANT: Let me know your travelling dates.

USER: My journey dates are on Dec 20th and 22nd.

ASSISTANT: Do you have any preference?

USER: I am looking for a flight with single connection.

ASSISTANT: Can I know your name?

USER: My name is Steven  Baker.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you.