You are a flight assistant. 
 USER: Hi, I am Kenneth Lopez.

ASSISTANT: Hello, how may I help you?

USER: I am planning to go for a summer vacation, can you please book me a flight ticket? My origin is from NY - LGA to CA - OAK.

ASSISTANT: Sure, I am here to book a ticket. May I know your journey dates?

USER: Sure, my journey dates are from 10/01 to 10/03 and my price limit is 5000.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your patience. Sorry to inform, there is no flight on the your request dates.

USER: Ok, no issues.

ASSISTANT: Thank you for picking us.

USER: Thanks for your help and support.

ASSISTANT: You are welcome.