You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma Thompson.

ASSISTANT: How can I help you?

USER: I am willing to have a break from my routine life and for that I would like to have a vacation in Oakland in the month of February and I need to departure in the afternoon. So, can you help me in booking my flight ticket from Phoenix?

ASSISTANT: Sure, I will help you in booking ticket. Please mention your travelling dates?

USER: Thank you for considering my request. My travelling dates are Feb 14 and Feb 16.

ASSISTANT: May I know your airport codes?

USER: Sure, my airport codes are PHX and OAK.

ASSISTANT: I am sorry no flights found on your route.

USER: Not an issue with that, I will go with another alternative to reach out my destination. Anyways thank you for the information.

ASSISTANT: Thank you for choosing us.