You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am John Hernandez.

ASSISTANT: How may I assist you at this moment?

USER: I am looking for a flight for me from OAK to PHL, can you help me over that?

ASSISTANT: Sure, may I know your preferable dates of travelling?

USER: Sure, my trip dates should be 03/19 and 03/21.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure, take your time.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 300 is provided by UA airlines. Shall I proceed with this?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked in flight number 1028.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us, have a great journey.