You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Robert Taylor.

ASSISTANT: How may I help you today?

USER: Can you help me to book a flight from LAX to DFW?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My journey dates are 09/16 and 09/18.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: No issues. Thank you for your time.

ASSISTANT: Thank you for choosing us.