You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Ruth Jackson. Can you please help me in booking a flight ticket from Detroit, DTW to Los Angeles, LAX?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: My schedule dates of journey are 04/18 to 04/20.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: There is no flight available on your requirements.

USER: It's ok, thank you for your response.

ASSISTANT: Thanks for reaching us.