You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you at the moment?

USER: I am planning to watch Willis Tower with my family members. Can you do the reservation?

ASSISTANT: Sure, I am here to help you. Can you provide your take off and landing codes?

USER: My airport codes are DFW-ORD. Dates are 10/01 and 10/03.

ASSISTANT: Ok, please wait for some time, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, Unfortunately there were no flights found on your planned schedule. May I know your good name please?

USER: No problem, Thanks for the information. Lisa Gonzalez here.

ASSISTANT: Thank you for reaching us, have a great day ahead.