You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I am planning to go for Phoenix, AZ-PHX.Can you please help me in booking my ticket?

ASSISTANT: Sure, on which dates you are planning to fly?

USER: I am planning to fly on 01/05 and my return date is 01/07.

ASSISTANT: May I know your origin, please?

USER: My origin place is SFO.

ASSISTANT: Can you help me with your name?

USER: Robert Turner is my name.

ASSISTANT: Thank you for your details.

USER: Welcome.

ASSISTANT: Sorry, there is no flight is available for your details.

USER: Ok, fine not an issue. Thank you for your information.

ASSISTANT: You are welcome.