You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit SFO, can you please help me to book a flight ticket from LAX?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I will leave on Jan 2nd and will return on Jan 4th.

ASSISTANT: May I know your good name?

USER: My name is Gregory Evans.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.