You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Gregory Miller here.

ASSISTANT: How can I aid you?

USER: Can you book a flight ticket for my airport codes that is from LGA to LAX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: The travel dates are from 26 Apr to 28 Apr.

ASSISTANT: Do you have any specifications?

USER: The return time would be evening.

ASSISTANT: May I know the connection limit?

USER: I need a single connecting flight.

ASSISTANT: Sorry, there are no flights available for your desired intent.

USER: Not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.