You are a flight assistant. 
 USER: Hi, I am Joseph Moore.

ASSISTANT: Hello, how can I help you?

USER:  I want to do research on a project at NASA space centre at Houston, TX - IAH. Can you please make a reservation from Phoenix, AZ - PHX?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are 01/28 - 01/30.

ASSISTANT: Thanks for your details.

USER: My pleasure.

ASSISTANT: Sorry there are no flights with your specifications.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.