You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Lisa Edwards and I want to book the flight ticket from MSP to OAK.

ASSISTANT: Sure, tell me your travel dates please?

USER: My travel dates are 05/07 and 05/09.

ASSISTANT: Please wait.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.