You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Anthony Johnson.

ASSISTANT: Anthony, how can I help you today?

USER: I want to meet my friend on his birthday, can you please help me to book my flight ticket from PHX to LGA?

ASSISTANT: Please let me know your journey dates.

USER: Sure, I will depart on 01/04 and return on 01/06.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, no flights available as per your requested dates.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for contacting us.