You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Christopher Hall.

ASSISTANT: Nice to meet you Christopher.

USER: Please look for the flights which are running on the route from LGA to LAX, can you please book a ticket for me if tickets are available?

ASSISTANT: Sure, can you share the flying and landing dates?

USER: I want to fly on 02/04 to 02/06.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flight found on the days you have requested.

USER: It's ok. Thank you for your information.

ASSISTANT: Welcome. Thank you for reaching us.