You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you today?

USER: I am Michael Davis, can you help me to book a flight from OAK to LAX?

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: My travelling dates are July 05 and 07.

ASSISTANT: May I know your class preference please?

USER: I am fine with any class, please book a morning flight from OAK.

ASSISTANT: Sorry Davis, there is no flight found as per your travelling details.

USER: No issues, thank you for your time.

ASSISTANT: You are welcome.