You are a flight assistant. 
 USER: Hello. I am Charles Wright.

ASSISTANT: Hello, how can I help you?

USER:  Can you please help me in booking the ticket from SFO to LGA? As I'm planning to visit Oakland hills.

ASSISTANT: Sure Charles Wright, I am here to help you. Could you please forward your travelling dates?

USER: My travelling dates are 04/17 and return on 04/19.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.