You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Here Samantha Nelson and I have to participate in a singing competition in PHL, so please reserve a flight ticket for me from PHX.

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: I need a direct flight to reach my destination on 04/24 and arrival back on 04/26.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

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

USER: Sad to hear but anyways, thank you for your quick search.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.