You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: This side Anna Robinson.

ASSISTANT: How may I assist you today?

USER: Can you help me to book a connecting flight from lAX to JFK?

ASSISTANT: Sure, let me know your travel dates please?

USER: My planning dates are 20 and 22 of Aug.

ASSISTANT: Could you please confirm your source airport code?

USER: My source code is LAX.

ASSISTANT: Do you need any specifications?

USER: My depart time should be at morning.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flight services available on your given route.

USER: Oh! not a problem. Thank you for giving information.

ASSISTANT: Thanks for reaching us, have a nice day.