You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Raymond Hernandez.

ASSISTANT: What assistance  do you need from our agency?

USER: I want to book a flight ticket from HOU to PHX, can you help me with booking please?

ASSISTANT: Sure, I am here to assist you with the ticket booking. Could you please tell me your planned travel dates?

USER: My travelling dates are 11/29 and 12/01.

ASSISTANT: Ok, which type of do you prefer to travel?

USER: I need a connecting flight.

ASSISTANT: Sorry, which type of class do you prefer?

USER: I am ok with any class.

ASSISTANT: Sorry to inform you that, there are no flights found in this route on the dates you have given.

USER:              That's ok, thank you for the response.

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