You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle Evans here.

ASSISTANT: How may I assist you at this moment?

USER: I have planned a trip with my students to enjoy the holidays in water world in the month of March, so please book an advance flight ticket for me to OAK from my home town BOS?

ASSISTANT: Sure, I am glad to help you with that. Can you please tell me your planned travel dates?

USER: Thank you, I am planning to leave on 03/26 and please book my return ticket also on 03/28.

ASSISTANT: Ok, please allow me sometime to find the flight with your details.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, I have not found any flight in this route on the dates you have given.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey. Thank you for the information.

ASSISTANT: You are most welcome. Thank you for reaching us.