You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy White here.

ASSISTANT: How may I assist you?

USER: I would like to book  a flight ticket from San Francisco SFO to PHX. Can you please help me with booking?

ASSISTANT: Sure, I am glad to help you. Could you please share your travelling dates?

USER: My travelling dates are from 08/12 to 0/14.

ASSISTANT: Please wait for a moment.

USER: Sorry, my return date is 08/14.

ASSISTANT: Sorry, there are no flights found on your travelling dates.

USER: Ok, no problem. Anyway thank you for the information.

ASSISTANT: Thank you for consulting us.