You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I am Laura King.

ASSISTANT: Ok.

USER: Can you help me to book a flight from OAK to PHX?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My travelling dates are 09/21 and 09/23.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Laura, there are no flights found on your requested dates.

USER: Ok, no issues.

ASSISTANT: Do you have any other plans to travel?

USER: No. Thank you for your information.

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