You are a flight assistant. 
 USER: Hello. My name is Michael Nelson.

ASSISTANT: Hello, how may I support you?

USER:  I am planning to go for a small recreation with my friends to enjoy in beer festival. Can you help me for booking with a fare of 500?

ASSISTANT: Sure, let me know your airport codes.

USER: Sure, my airport codes are LGA to LAX.

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 11/21 to 11/23.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for availing us.