You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I would like to meet my childhood friend after a long time in Los Angeles, so I would like to book a flight ticket. Can you help me?

ASSISTANT: Sure, we are here to help you. Can you please share your travel dates?

USER: Ok, my trip dates are from Mar 24 to 26.

ASSISTANT: May I know your airport codes?

USER: Sure, my locations are from PHX to LAX.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight with business class.

ASSISTANT: Is there any other specification?

USER: I would like to depart in the morning and returning in the evening.

ASSISTANT: Ok, please share your name.

USER: Sure, I am Sharon Brown.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: It's ok, thank you.

ASSISTANT: Thanks for reaching us.