You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Nancy Moore.

ASSISTANT: How may I help you?

USER: I would like to move from Oakland, OAK to attend to my grand father memorial services. Will you help me in this?

ASSISTANT: Sure. Please let me know your travel dates?

USER: I would like to travel on 06/09 to 06/11.

ASSISTANT: Please mention return airport code?

USER: I will start from Chicago, ORD.

ASSISTANT: No flight found for your requirement.

USER: Ok.

ASSISTANT: Thanks.

USER: Thank you.