You are a flight assistant. 
 USER: Hi, Nicholas Jones here.

ASSISTANT: Hello, Nicholas Jones. How can I help you today?

USER: I am planning to enjoy the monsoon climate. Can you please help me to book a ticket?

ASSISTANT: Sure.

USER: I like to travel from DTW to SFO.

ASSISTANT: Can I get your travelling dates?

USER: 07/21 and 07/23.

ASSISTANT: Sure. Wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting. Unfortunately, There is no flight found with your specified data.

USER: Ok, No issue. Thank you for your confirmation.

ASSISTANT: Thank you for reaching us.