You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Alexander Martin.

ASSISTANT: How may I guide you now?

USER: Will you help me in booking the flight ticket from OAK to PHX?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 09/22 and 09/24.

ASSISTANT: Ok, please be on hold for a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your request.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching our services.

USER: Thank you for your information.

ASSISTANT: Most welcome.