You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Deborah Allen.

ASSISTANT: How can I help you?

USER: I have to join my friends in a party at LGA, can you please book me a ticket from PHX?

ASSISTANT: Sure, may I know your travelling dates?

USER: Yes, I want to take off here on 06/18 and return by 06/20.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: That's ok, I will go by train then. Thank you so much.

ASSISTANT: Thank you for opting us.