You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Sandra Evans here.

ASSISTANT: Sandra Evans,how can I assist you today?

USER: Reserve a flight ticket for me that is from SEA to OAK.

ASSISTANT: Sure, I will help you with that. Can you please provide me your planned travel dates?

USER: My preferable dates for travel are 09/13 to 09/15. I need a connecting flight.

ASSISTANT: Thank's for your patience, there are no flights available on your route as per your travel dates.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you.

ASSISTANT: Most welcome.