You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Please reserve a flight ticket from SEA to SFO?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: I am planning to go on 07/02 and 07/04 dates.

ASSISTANT: May I know your name?

USER: Myself Jennifer Robinson.

ASSISTANT: Jennifer, let me check for the available flights.

USER: Ok,.

ASSISTANT: Sorry Jennifer, there are no flights available on your given dates.

USER: Ok,fine thank you for checking.

ASSISTANT: You are welcome, thank you for contacting us.