You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to fly from SFO-PHX. Can you check the flight availability for this journey?

ASSISTANT: Let me know your travel dates.

USER: my planned travel dates are 02/29 and 03/02.

ASSISTANT: Can I know your name?

USER: Jacob Clark here.

ASSISTANT: Do you have any preference?

USER: I need economy class only, no more preferences please.

ASSISTANT: Sorry, no flights found for your travelling dates. Thank you.

USER: No issues, thank you for the information.