You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily Anderson.

ASSISTANT: How can I help you?

USER: I want to book a flight ticket from MSP to LGA, can you help me with it?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My trip dates will be Feb 5th to Feb 7th.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your departure time and return time?

USER: My depart time should be in the evening.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Its ok, thank you.

ASSISTANT: Welcome, have a nice day.