You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to book a connecting flight ticket to meet my grandparents at CA. Can you help me?

ASSISTANT: When are you planning to make your journey?

USER: I intend to start on Mar 24th and my return date will be on Mar 26th.

ASSISTANT: Do you have any class preferences?

USER: I want economy class ticket.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My source and destination airport codes are MCO and LAX.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: No issues, I'll choose any alternative.

ASSISTANT: May I know your name?

USER: Thank you. I am Matthew Davis.

ASSISTANT: Thank you.