You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Stephanie Martinez. I am looking for a flight from OAK to IAH, can you make a seat reservation in flight?

ASSISTANT: Sure, when you are planning your journey?

USER: My trip dates are from 08/07 till 08/09.

ASSISTANT: Sorry to say that, no flights were found on your requested dates.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.