You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Smith.

ASSISTANT: How can I help you today?

USER: I am looking to book a flight ticket to meet my friend in Phoenix. Can you help me for booking a flight ticket from LAX to PHX?

ASSISTANT: Sure, I am glad to help you in booking. Could you please share your travel dates?

USER: My travelling dates are 03/25 and 03/27.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no flights are available on your planning dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Welcome.