You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to travel PHX and SFO, can you please reserve flight ticket?

ASSISTANT: May I know your trip dates?

USER: My travelling dates are July,05 and July,07.

ASSISTANT: Do you prefer any connections?

USER: Yes, I prefer to travel with one connection.

ASSISTANT: May I know your specifications?

USER: Not having any other specifications.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: That's ok, I will choose any other source to reach my destination.

ASSISTANT: May I know your name for documentations?

USER: Myself Melissa Hill.

ASSISTANT: Thank you.

USER: Thank you for the information.