You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I wish to attend my grand daughter's wedding at Oakland. Please help me by booking a flight ticket to reach there.

ASSISTANT: Sure, can I know your source airport code?

USER: JFK is my source airport code.

ASSISTANT: Ok, let me know your planned travel dates?

USER: January 26 and 28 are my planned travel dates.

ASSISTANT: Do you need a pause in you journey?

USER: No, I wish to fly in a direct. I can't wait to see my grand daughter.

ASSISTANT: Sure, may I know your airline preference?

USER: I am comfort with Normal-cost Airlines.

ASSISTANT: Any other requirement to be met?

USER: I am good with the above stated requirements.

ASSISTANT: May I know please your name to proceed further?

USER: Sure, I am Scott Walker.

ASSISTANT: I regret to inform you that there were no flights found with your requirements.

USER: Oh! I haven't expected this. I will check with other sources to attend the wedding. Thank you.

ASSISTANT: Thank you for contacting us.