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

ASSISTANT: Hello, how may I support you?

USER: Iam planning to visit theme park in Oakland, can you please help me to book a flight with single connection?

ASSISTANT: Sure, on what dates are you planning to make your journey?

USER: 07/22 and 07/24 are my schedule journey dates.

ASSISTANT: Kindly mention your airport codes.

USER: I want to start from Houston, TX-IAH to reach Oakland, CA-OAK.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.