You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,how can I help you today?

USER: I want to travel LAX, can you help me to book flight ticket from PHX?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: My travelling dates are Apr 14 and Apr 16.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight to reach my destination.

ASSISTANT: May I know your name?

USER: Sure, I am Robert Perez.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Not an issue, thank you.

ASSISTANT: Thanks for approaching us.