You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Brown.

ASSISTANT: How can I help you?

USER: Could you please book a flight ticket to Phoenix from Orlando?

ASSISTANT: Let me know your travelling dates.

USER: I want to travel on Aug 26 and return back on 28 Aug.

ASSISTANT: Can I know your airport codes?

USER: My trip airport codes are MCO and PHX.

ASSISTANT: Do you have any preference?

USER: I want to depart in the evening.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Not an issue, thanks for checking.

ASSISTANT: Thank you.