You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a normal-cost airline to meet my friend at Houston. Can you book a connecting flight for me?

ASSISTANT: Sure, I am here to help you. Please let me know your source and destination.

USER: My source point is IAD and my destination is IAH.

ASSISTANT: Ok, May I know your journey dates?

USER: I will travel on June 13 and return on June 15.

ASSISTANT: Ok, Do you have any class preference?

USER: I want economy class.

ASSISTANT: Ok, please let me know your depart and return timings.

USER: I am fine with any flight timing.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, There were no flights found with your given specifications.

USER: Ok, thank you for the information.

ASSISTANT: Ok, May I know your name?

USER: My name is Benjamin Baker.

ASSISTANT: Ok, Thank you for reaching us.