You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, please let me know your travelling dates to search a flight?

USER: My travel dates are 08/07 and 08/09.

ASSISTANT: May I know your name?

USER: Myself Sharon Evans.

ASSISTANT: Sorry, there is no flight as per your details.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for choosing us.