You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I am Laura Brown and I want to go for a trip to Oakland, CA - OAK with my friends, can you please book a ticket from Houston, TX - IAH?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please forward your travelling dates?

USER: I will takeoff on 03/21 and return on 03/23.

ASSISTANT: How can you afford for your flight ticket?

USER: I can spend up to 500.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: There is no flight found on your journey locations due to bad weather conditions.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.