You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I support you today?

USER: Can you help me book a direct flight from Los Angeles to Phoenix on the name of Virginia Davis?

ASSISTANT: Sure, Please let me know your airport codes.

USER: They are from LAX to PHX.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a direct flight.

ASSISTANT: Kindly share your fare preference.

USER: I can afford up-to 1000.

ASSISTANT: Can I know your planned travelling dates?

USER: I will start on 10/26 and end on 10/28.

ASSISTANT: Thanks for giving details, give me a moment I will check and let you know.

USER: Ok.

ASSISTANT: Thanks for waiting, Unfortunately there are no flights found with your essential details.

USER: It's ok, thank you for your response.

ASSISTANT: Thanks for reaming so positive.