You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help is required from my end?

USER: I am Deborah Evans here. I would like to book a ticket from PHX to OAK, can you please help me?

ASSISTANT: Sure Evans, could you please let me know the travel dates?

USER: I want start on 06/06 and return on 06/08.

ASSISTANT: Ok, wait a moment please to check the best flights available for you.

USER: Sure, I will wait for your responce.

ASSISTANT: Sorry for the inconvenience, there are no flights available as per your request.

USER: No problem, any way thank you for checking.

ASSISTANT: Thank you for approaching us.