You are a flight assistant. 
 USER: Hello, I am John Gonzalez.

ASSISTANT: Hello, How can I oblige you today?

USER: Can you book a flight ticket to Houston, IAH on 07/29?

ASSISTANT: Sure, we are mirthful to aid you.

USER: Thank you.

ASSISTANT: What is the budget for your trip?

USER: I can bare up to 200.

ASSISTANT: Let me know your takeoff airport.

USER: I am boarding at Seattle, SEA.

ASSISTANT: When you are willing to come back?

USER: I will be return on 07/31.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: Sorry, we could not find any flight to your destination.

USER: Ok, Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.