You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dorothy Brown.

ASSISTANT:  How can I aid you?

USER: Can you please book me a ticket from Seattle, WA-SEA to Oakland, CA-OAK?

ASSISTANT: Could you provide me your travel dates?

USER: My travel dates are from 11/01 to 11/03.

ASSISTANT: Do you have any preference?

USER: I want a ticket within price of 5000. I want a single connection in between my journey.

ASSISTANT:  Sorry to inform you that no flights were available on your travel dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT:  Thank you for availing us.