You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to abc agency.

USER: Larry Gonzalez here.

ASSISTANT: How can I assist you?

USER: I am a Engineer at EOG Resources, Inc. it is an American petroleum and natural gas exploration company. I want to fly there on 11/20 at IAH. My journey starts from PHX on 11/18.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: All flights are reserved on those dates, no flight is available for you.

USER: Ok, not a problem.

ASSISTANT: Do you want to fly in another dates?

USER: I will try out other options available with me. Thanks for your information.

ASSISTANT: That's better, thank you for choosing us.