You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Jonathan Hall. I want to book a ticket from CLT to LAX, can you help me?

ASSISTANT: Sure, I will help you in booking. May I know your planned travel dates?

USER: My travel dates are 04/10 and 04/12.

ASSISTANT: At which time you would like to travel?

USER: I am comfortable with all timings.

ASSISTANT: Please provide your specifications.

USER: I want to return in the morning.

ASSISTANT: Unfortunately we did not find any flight on your matching information.

USER: No problem, thanks for checking.

ASSISTANT: Thank you.