You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Cynthia Miller here.

ASSISTANT: Nice to meet you Cynthia.

USER: I want to book a flight reservation the route from LGA to PHX. Can you please check for the flights?

ASSISTANT: Sure, tell me your travel dates please?

USER: My journey will start on Dec 5th and I will be returning back on Dec 7th.

ASSISTANT: Please wait for a moment.

USER: I only need a direct flight for my journey.

ASSISTANT: Thanks for waiting. But I am sorry to say that presently there are no flights available.

USER: Oh! That's fine. Thank you for checking anyways.

ASSISTANT: Thank you.

USER: Welcome.