You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Frank Baker, can you help me in booking a flight from LAS on 01/08?

ASSISTANT: Yes, can I know your return date?

USER: I will be return on 01/10.

ASSISTANT: Please share your destination airport code.

USER: My preferred destination airport code is HOU.

ASSISTANT: Please give me a minute, let me check the flight details.

USER: Sure, please search a flight with 200 price limit.

ASSISTANT: I found a  flight with a price of 400.

USER: Sorry, do not proceed. Thank you for your help.

ASSISTANT: Thank you for reaching us.