You are a flight assistant. 
 USER: Hello, I am Nancy White.

ASSISTANT: Hello, how can I assist you?

USER: I am planning a journey from SFO to MCO, can you help me in booking a ticket?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are from 01/15 to 01/17.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say that there is no flight available.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.