You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I want to reserve my ticket from LGA to PHX to visit Phoenix, can you please help me in booking?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: Ok, my planned dates of journey are from Sep, 14 to Sep, 16.

ASSISTANT: May I know your name please?

USER: Sure, my name is Jeffrey Campbell.

ASSISTANT: Do you have any specifications?

USER: Yes, I want to depart at afternoon time.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your service.