You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Pamela Roberts.

ASSISTANT: How may I help you today?

USER: I am planning to visit Phoenix, can you please book me a ticket from SFO to PHX?

ASSISTANT: Sure, please kindly share your travel dates.

USER: My preferable journey dates are from May 26 and May 28.

ASSISTANT: Is there any time concern?

USER: I prefer to depart at afternoon flight and would like to return at morning flight.

ASSISTANT: Do you need a connecting flight?

USER: I prefer connecting flight for this journey.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

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

ASSISTANT: Thank you for choosing us.