You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you?

USER: Can you please book a flight ticket from OAK to PHX?

ASSISTANT: Sure. May I know your name please?

USER: I am Ryan Robinson.

ASSISTANT: Tell me your travel dates please and connection limit please?

USER: My trip dates are 06/26 and 06/28.

ASSISTANT: Any other preferences?

USER: I don't have any preferences for my journey.

ASSISTANT: Thanks for your time. I have not found any flight with your flight details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you.