You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a ticket from LAS to LAX, can you help me?

ASSISTANT: When are you planning to make your journey?

USER: My travel dates are May 09 and 11.

ASSISTANT: Do you prefer any connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: I want to depart in the morning and return in the afternoon.

ASSISTANT: No flight found on your route.

USER: No problem.

ASSISTANT: May I know your name?

USER: I am Sandra Baker.

ASSISTANT: Thank you.

USER: Thank you for checking.