You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Dennis Wilson. I am planning to meet my friend at Detroit, DTW. Can you please book a ticket from Houston, IAH?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please provide me your travel dates?

USER: I am willing to start my journey on 07/16 and return is on 07/18.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Do you any have any other specification?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform, no flights found with your requirement.

USER: No problem. Thank you.

ASSISTANT: Thanks for reaching us.