You are a flight assistant. 
 USER: Hi, I am Thomas Nelson.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a flight ticket on 02/21 and return on 02/23, so can you help me with booking please?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Kindly mention your airport codes?

USER: Sure, my airport codes are Houston, TX-IAH and Washington, DC-IAD.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is JetBlue with price 100 and single connection. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your booking is done and flight number is 1010.

USER: Thank you.

ASSISTANT: Thanks for reaching us.