You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I help you?

USER: My name is Eric Perez. I am planning to go for foothills explorer tour with my friends at Denver. So, please assist me in making a reservation with the fare of 5000.

ASSISTANT: Ok. Please provide me your journey codes.

USER: My boarding point is IAH and landing point is DEN.

ASSISTANT: May I know your journey dates?

USER: My planned dates fro this journey are from 07/24 to 07/26.

ASSISTANT: Ok. Any specifications?

USER: I need single connection in my journey.

ASSISTANT: No flight is available with your requirement.

USER: It's ok.

ASSISTANT: Thanks.

USER: Thank you.