You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me to book a flight ticket from LGA to SFO.

ASSISTANT: Can I have your journey dates?

USER: My travel dates are 09 to 11 of May.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any other specifications?

USER: I prefer to depart in the morning.

ASSISTANT: May I know your name?

USER: I am Scott Jackson.

ASSISTANT: There are no flights available on your routes.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for opting us.