You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: I am Timothy Thompson, can you help me to book a flight from SFO to OAK?

ASSISTANT: Sure, May I know the journey dates?

USER: My travelling dates are Nov 27 and 29.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for availing us.