You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I am Emma King. Can you help me in booking from Houston, HOU on 12/11?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Let me know, when you are planning to return from your trip?

USER: I will be return on 12/13.

ASSISTANT: How much you can afford for this journey?

USER: I can bare up to 200.

ASSISTANT: Kindly, share your landing airport code to proceed further.

USER: I am landing at Washington, DCA.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: Unfortunately, there are no flights available with your requirements.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for contacting us.