You are a flight assistant. 
 USER: Hello, my name is Samantha Adams.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Being a doctor I need to fly to Dallas and Fort Worth to attend in world health conference from Houston. So can you please help me in booking a flight ticket?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Could you please let me know your travelling dates?

USER: Sure, I would be free on 12/29 to start my journey. And I will return on 12/31.

ASSISTANT: Can you please help me by providing your airport codes?

USER: Houston, TX-IAH is my boarding airport point and Dallas, TX-DFW is my landing airport point.

ASSISTANT: Do you have any restrictions on price limit?

USER: I can afford up to 200 from my budget.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, my friends need to join in between, that's why please look for single connection.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure, I wait for your response.

ASSISTANT: Unfortunately, no airlines are providing service on your travel dates.

USER: That's not a big problem.I will choose another alternative of transportation.

ASSISTANT: Thank you for availing us.

USER: Thank you for your effort to approach us for the booking process.