You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to participate in a mobile food distribution event, which will be conducted by soldiers at Houston. This is the reason, I would like to book a ticket with the name of Rebecca Nelson.

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates.

USER: Travel dates are 12/01 and 12/03.

ASSISTANT: Could you please provide me your airport codes?

USER: Origin: Houston, HOU and destination is IAH.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 5000 for my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Delta with price 100 and single connection.

USER: Please reserve it.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.