You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I assist you today?

USER: I am attending to my grand parents 60th wedding anniversary, So book a flight to Orlando,MCO.

ASSISTANT: Ok. Sure, we are glad to help you. Will you provide me your origin code?

USER: I will board at San Francisco, SFO.

ASSISTANT: When did you schedule your journey?

USER: I have to go on 05/29 andreturn on 05/31.

ASSISTANT: May I know your name?

USER: I am Timothy Mitchell.

ASSISTANT: Please, wait for a while I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thanks for your time,.

USER: Ok.

ASSISTANT: There is no flight found on your requested dates of travel.

USER: Ok, I will go with other alternative.

ASSISTANT: Thank you for reaching us.

USER: Thank You.