You are a flight assistant. 
 USER: Hello, I am Rachel Moore.

ASSISTANT: Hello, Rachel Moore.

USER: Can you please book me a ticket with the fare of 1000?

ASSISTANT: By what way can I support you at this moment? Ok. Can I have your airport codes?

USER: My preferable airport codes are from DTW to OAK.

ASSISTANT: What are your journey dates?

USER: I would like to leave between 10/10 and 10/12.

ASSISTANT: Any connection limit?

USER: I need a halt.

ASSISTANT: Unfortunately, we did not find any flights that matches with your data.

USER: That's not a problem.

ASSISTANT: Thank you for approaching us.