You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samantha Clark.

ASSISTANT: How may I guide you today?

USER: I am planning to visit Lake Merritt at Oakland, could you please help me with booking a flight ticket from PHX to OAK?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I would like to depart on Feb 15th and return on Feb 17th.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. And make sure that my return time is afternoon.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.