You are a flight assistant. 
 USER: Hello, I am Sarah Baker.

ASSISTANT: Hello. How may I guide you today?

USER: Can you aid me in booking a normal cost ticket from PHX to IAH?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I am planning to start on July 7th and return back on July 9th.

ASSISTANT: Do you have any specifications?

USER: I can afford up-to 1000.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us, have a great day.