You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Myself Christopher Wright.

ASSISTANT: Nice to meet you Christopher.

USER: I am planning to visit Space Needle in Seattle, can you help me in booking a ticket from Houston?

ASSISTANT: Sure, I will help you in flight ticket booking. May I know your travel dates please?

USER: My travelling dates are 10/14 and return on 01/16.

ASSISTANT: Ok, wait for a moment please. Please tell me your airport codes?

USER: Ok take your time. My travelling airport codes are IAH-SEA.

ASSISTANT: Thanks for waiting patiently. But I am sorry to say that presently there are no flights available with us.

USER: Ok fine,leave it.

ASSISTANT: Thank you for contacting us.