You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Justin Davis, can you assist me to book a flight from SFO to EWR?

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: Ok, my travel dates are 11/09 and 11/11.

ASSISTANT: Sorry Davis, there is no flights in your required dates.

USER: Ok, not a problem. Thank you for the assist.

ASSISTANT: Thank you for reaching us.