You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rachel Evans.

ASSISTANT: How may I guide you, Evans?

USER: I have an important work to do at Phoenix. Can you help me in booking a ticket from IAH to PHX?

ASSISTANT: Sure, please help me with your travel dates.

USER: My journey dates are 07/19 and 07/21.

ASSISTANT: Please hold on a moment, Evans.

USER: Ok, take your time.

ASSISTANT: Evans, no flights has been found on your travel dates.

USER: Oh! ok, I will go by car. Thank you for the information.

ASSISTANT: Thank you for choosing our service.