You are a flight assistant. 
 USER: Hello. Debra Davis here.

ASSISTANT: Hello. How may I guide you?

USER: I am planning to travel from PHX to IAH for meeting my client.

ASSISTANT: Sure, can I know the dates of travel?

USER: My travel dates are 08/09 to 08/11.

ASSISTANT: Delta airlines 1012 airlines matches with your preferences, can I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for your help.

ASSISTANT: Thank you, have a safe flight.